| 1 | import os |
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| 2 | import sys |
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| 3 | import wx |
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| 4 | import numpy as np |
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| 5 | import matplotlib |
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| 6 | matplotlib.interactive(False) |
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| 7 | #Use the WxAgg back end. The Wx one takes too long to render |
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| 8 | matplotlib.use('WXAgg') |
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| 9 | from sas.guiframe.local_perspectives.plotting.SimplePlot import PlotFrame |
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| 10 | #import matplotlib.pyplot as plt |
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| 11 | import matplotlib.image as mpimg |
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| 12 | import matplotlib.colors as colors |
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| 13 | from sas.guiframe.events import StatusEvent |
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| 14 | from sas.perspectives.calculator.calculator_widgets import InputTextCtrl |
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| 15 | from sas.dataloader.data_info import Data2D |
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| 16 | from sas.dataloader.data_info import Detector |
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| 17 | from sas.dataloader.manipulations import reader2D_converter |
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| 18 | from sas.guiframe.documentation_window import DocumentationWindow |
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| 19 | |
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| 20 | _BOX_WIDTH = 60 |
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| 21 | IS_WIN = True |
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| 22 | if sys.platform.count("win32") > 0: |
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| 23 | _DIALOG_WIDTH = 400 |
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| 24 | else: |
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| 25 | _DIALOG_WIDTH = 480 |
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| 26 | IS_WIN = False |
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| 27 | |
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| 28 | class ImageView: |
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| 29 | """ |
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| 30 | Open a file dialog to allow the user to select a given file. |
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| 31 | Display the loaded data if available. |
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| 32 | """ |
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| 33 | def __init__(self, parent=None): |
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| 34 | """ |
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| 35 | Init |
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| 36 | """ |
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| 37 | self.parent = parent |
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| 38 | |
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| 39 | def load(self): |
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| 40 | """ |
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| 41 | load image files |
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| 42 | """ |
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| 43 | parent = self.parent |
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| 44 | if parent == None: |
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| 45 | location = os.getcwd() |
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| 46 | else: |
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| 47 | location = parent._default_save_location |
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| 48 | path_list = self.choose_data_file(location=location) |
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| 49 | if path_list == None: |
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| 50 | return |
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| 51 | if len(path_list) >= 0 and not(path_list[0]is None): |
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| 52 | if parent != None: |
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| 53 | parent._default_save_location = os.path.dirname(path_list[0]) |
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| 54 | err_msg = '' |
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| 55 | for file_path in path_list: |
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| 56 | basename = os.path.basename(file_path) |
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| 57 | _, extension = os.path.splitext(basename) |
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| 58 | try: |
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| 59 | img = mpimg.imread(file_path) |
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| 60 | is_png = extension.lower() == '.png' |
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| 61 | plot_frame = ImageFrame(parent, -1, basename, img) |
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| 62 | plot_frame.Show(False) |
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| 63 | ax = plot_frame.plotpanel |
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| 64 | if not is_png: |
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| 65 | ax.subplot.set_ylim(ax.subplot.get_ylim()[::-1]) |
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| 66 | ax.subplot.set_xlabel('x [pixel]') |
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| 67 | ax.subplot.set_ylabel('y [pixel]') |
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| 68 | ax.figure.subplots_adjust(left=0.15, bottom=0.1, |
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| 69 | right=0.95, top=0.95) |
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| 70 | plot_frame.SetTitle('Picture -- %s --' % basename) |
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| 71 | plot_frame.Show(True) |
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| 72 | if parent != None: |
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| 73 | parent.put_icon(plot_frame) |
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| 74 | except: |
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| 75 | print "parent", parent |
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| 76 | err_msg += "Failed to load '%s'.\n" % basename |
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| 77 | if err_msg: |
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| 78 | if parent is not None: |
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| 79 | wx.PostEvent(parent, StatusEvent(status=err_msg, info="error")) |
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| 80 | else: |
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| 81 | print err_msg |
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| 82 | |
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| 83 | def choose_data_file(self, location=None): |
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| 84 | """ |
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| 85 | Open a file dialog to allow loading a file |
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| 86 | """ |
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| 87 | path = None |
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| 88 | if location == None: |
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| 89 | location = os.getcwd() |
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| 90 | dlg = wx.FileDialog(self.parent, "Image Viewer: Choose a image file", |
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| 91 | location, "", "", style=wx.FD_OPEN | wx.FD_MULTIPLE) |
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| 92 | if dlg.ShowModal() == wx.ID_OK: |
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| 93 | path = dlg.GetPaths() |
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| 94 | else: |
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| 95 | return None |
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| 96 | dlg.Destroy() |
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| 97 | return path |
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| 98 | |
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| 99 | class ImageFrame(PlotFrame): |
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| 100 | """ |
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| 101 | Frame for simple plot |
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| 102 | """ |
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| 103 | def __init__(self, parent, id, title, image=None, scale='log_{10}', |
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| 104 | size=wx.Size(550, 470)): |
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| 105 | """ |
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| 106 | comment |
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| 107 | :Param data: image array got from imread() of matplotlib [narray] |
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| 108 | :param parent: parent panel/container |
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| 109 | """ |
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| 110 | # Initialize the Frame object |
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| 111 | PlotFrame.__init__(self, parent, id, title, scale, size) |
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| 112 | self.parent = parent |
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| 113 | self.data = image |
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| 114 | self.file_name = title |
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| 115 | |
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| 116 | menu = wx.Menu() |
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| 117 | id = wx.NewId() |
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| 118 | item = wx.MenuItem(menu, id, "&Convert to Data") |
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| 119 | menu.AppendItem(item) |
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| 120 | wx.EVT_MENU(self, id, self.on_set_data) |
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| 121 | self.menu_bar.Append(menu, "&Image") |
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| 122 | |
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| 123 | menu_help = wx.Menu() |
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| 124 | id = wx.NewId() |
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| 125 | item = wx.MenuItem(menu_help, id, "&HowTo") |
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| 126 | menu_help.AppendItem(item) |
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| 127 | wx.EVT_MENU(self, id, self.on_help) |
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| 128 | self.menu_bar.Append(menu_help, "&Help") |
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| 129 | |
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| 130 | self.SetMenuBar(self.menu_bar) |
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| 131 | self.im_show(image) |
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| 132 | |
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| 133 | def on_set_data(self, event): |
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| 134 | """ |
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| 135 | Rescale the x y range, make 2D data and send it to data explore |
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| 136 | """ |
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| 137 | title = self.file_name |
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| 138 | self.panel = SetDialog(parent=self, title=title, image=self.data) |
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| 139 | self.panel.ShowModal() |
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| 140 | |
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| 141 | def on_help(self, event): |
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| 142 | """ |
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| 143 | Bring up Image Viewer Documentation from the image viewer window |
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| 144 | whenever the help menu item "how to" is clicked. Calls |
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| 145 | DocumentationWindow with the path of the location within the |
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| 146 | documentation tree (after /doc/ ....". |
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| 147 | |
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| 148 | :param evt: Triggers on clicking "how to" in help menu |
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| 149 | """ |
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| 150 | |
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| 151 | _TreeLocation = "user/perspectives/calculator/image_viewer_help.html" |
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| 152 | _doc_viewer = DocumentationWindow(self, -1, \ |
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| 153 | _TreeLocation, "Image Viewer Help") |
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| 154 | |
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| 155 | |
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| 156 | class SetDialog(wx.Dialog): |
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| 157 | """ |
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| 158 | Dialog for Data Set |
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| 159 | """ |
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| 160 | def __init__(self, parent, id= -1, title="Convert to Data", image=None, |
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| 161 | size=(_DIALOG_WIDTH, 270)): |
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| 162 | wx.Dialog.__init__(self, parent, id, title, size) |
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| 163 | # parent |
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| 164 | self.parent = parent |
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| 165 | self.base = parent.parent |
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| 166 | self.title = title |
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| 167 | self.image = np.array(image) |
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| 168 | self.z_ctrl = None |
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| 169 | self.xy_ctrls = [] |
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| 170 | self.is_png = self._get_is_png() |
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| 171 | self._build_layout() |
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| 172 | my_title = "Convert Image to Data - %s -" % self.title |
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| 173 | self.SetTitle(my_title) |
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| 174 | self.SetSize(size) |
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| 175 | |
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| 176 | def _get_is_png(self): |
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| 177 | """ |
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| 178 | Get if the image file is png |
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| 179 | """ |
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| 180 | _, extension = os.path.splitext(self.title) |
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| 181 | return extension.lower() == '.png' |
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| 182 | |
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| 183 | def _build_layout(self): |
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| 184 | """ |
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| 185 | Layout |
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| 186 | """ |
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| 187 | vbox = wx.BoxSizer(wx.VERTICAL) |
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| 188 | zbox = wx.BoxSizer(wx.HORIZONTAL) |
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| 189 | xbox = wx.BoxSizer(wx.HORIZONTAL) |
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| 190 | ybox = wx.BoxSizer(wx.HORIZONTAL) |
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| 191 | btnbox = wx.BoxSizer(wx.VERTICAL) |
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| 192 | |
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| 193 | sb_title = wx.StaticBox(self, -1, 'Transform Axes') |
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| 194 | boxsizer = wx.StaticBoxSizer(sb_title, wx.VERTICAL) |
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| 195 | z_title = wx.StaticText(self, -1, 'z values (range: 0 - 255) to:') |
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| 196 | ztime_title = wx.StaticText(self, -1, 'z *') |
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| 197 | x_title = wx.StaticText(self, -1, 'x values from pixel # to:') |
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| 198 | xmin_title = wx.StaticText(self, -1, 'xmin:') |
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| 199 | xmax_title = wx.StaticText(self, -1, 'xmax:') |
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| 200 | y_title = wx.StaticText(self, -1, 'y values from pixel # to:') |
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| 201 | ymin_title = wx.StaticText(self, -1, 'ymin: ') |
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| 202 | ymax_title = wx.StaticText(self, -1, 'ymax:') |
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| 203 | z_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH , 20), |
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| 204 | style=wx.TE_PROCESS_ENTER) |
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| 205 | |
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| 206 | xmin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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| 207 | style=wx.TE_PROCESS_ENTER) |
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| 208 | xmax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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| 209 | style=wx.TE_PROCESS_ENTER) |
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| 210 | ymin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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| 211 | style=wx.TE_PROCESS_ENTER) |
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| 212 | ymax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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| 213 | style=wx.TE_PROCESS_ENTER) |
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| 214 | z_ctl.SetValue('1.0') |
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| 215 | xmin_ctl.SetValue('-0.3') |
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| 216 | xmax_ctl.SetValue('0.3') |
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| 217 | ymin_ctl.SetValue('-0.3') |
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| 218 | ymax_ctl.SetValue('0.3') |
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| 219 | z_ctl.Bind(wx.EVT_TEXT, self._on_z_enter) |
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| 220 | xmin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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| 221 | xmax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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| 222 | ymin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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| 223 | ymax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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| 224 | xbox.AddMany([(x_title , 0, wx.LEFT, 0), |
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| 225 | (xmin_title , 0, wx.LEFT, 10), |
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| 226 | (xmin_ctl , 0, wx.LEFT, 10), |
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| 227 | (xmax_title , 0, wx.LEFT, 10), |
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| 228 | (xmax_ctl , 0, wx.LEFT, 10)]) |
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| 229 | ybox.AddMany([(y_title , 0, wx.LEFT, 0), |
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| 230 | (ymin_title , 0, wx.LEFT, 10), |
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| 231 | (ymin_ctl , 0, wx.LEFT, 10), |
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| 232 | (ymax_title , 0, wx.LEFT, 10), |
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| 233 | (ymax_ctl , 0, wx.LEFT, 10)]) |
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| 234 | zbox.AddMany([(z_title , 0, wx.LEFT, 0), |
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| 235 | (ztime_title, 0, wx.LEFT, 10), |
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| 236 | (z_ctl , 0, wx.LEFT, 7), |
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| 237 | ]) |
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| 238 | msg = "The data rescaled will show up in the Data Explorer. \n" |
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| 239 | msg += "*Note: Recommend to use an image with 8 bit Grey \n" |
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| 240 | msg += " scale (and with No. of pixels < 300 x 300).\n" |
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| 241 | msg += " Otherwise, z = 0.299R + 0.587G + 0.114B." |
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| 242 | note_txt = wx.StaticText(self, -1, msg) |
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| 243 | note_txt.SetForegroundColour("black") |
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| 244 | hbox = wx.BoxSizer(wx.HORIZONTAL) |
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| 245 | okButton = wx.Button(self, -1, 'OK') |
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| 246 | okButton.Bind(wx.EVT_BUTTON, self.on_set) |
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| 247 | cancelButton = wx.Button(self, -1, 'Cancel') |
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| 248 | cancelButton.Bind(wx.EVT_BUTTON, self.OnClose) |
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| 249 | btnbox.Add(okButton, 0, wx.LEFT | wx.BOTTOM, 5) |
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| 250 | btnbox.Add(cancelButton, 0, wx.LEFT | wx.TOP, 5) |
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| 251 | hbox.Add(note_txt, 0, wx.LEFT, 5) |
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| 252 | hbox.Add(btnbox, 0, wx.LEFT, 15) |
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| 253 | vbox.Add((10, 15)) |
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| 254 | boxsizer.Add(xbox, 1, wx.LEFT | wx.BOTTOM, 5) |
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| 255 | boxsizer.Add(ybox, 1, wx.LEFT | wx.BOTTOM, 5) |
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| 256 | boxsizer.Add(zbox, 1, wx.LEFT | wx.BOTTOM, 5) |
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| 257 | vbox.Add(boxsizer, 0, wx.LEFT, 20) |
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| 258 | vbox.Add(hbox, 0, wx.LEFT | wx.TOP, 15) |
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| 259 | okButton.SetFocus() |
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| 260 | # set sizer |
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| 261 | self.SetSizer(vbox) |
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| 262 | #pos = self.parent.GetPosition() |
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| 263 | #self.SetPosition(pos) |
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| 264 | self.z_ctrl = z_ctl |
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| 265 | self.xy_ctrls = [[xmin_ctl, xmax_ctl], [ymin_ctl, ymax_ctl]] |
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| 266 | |
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| 267 | def _onparamEnter(self, event=None): |
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| 268 | """ |
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| 269 | By pass original txtcrl binding |
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| 270 | """ |
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| 271 | pass |
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| 272 | |
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| 273 | def _onparam(self, event=None): |
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| 274 | """ |
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| 275 | Set to default |
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| 276 | """ |
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| 277 | item = event.GetEventObject() |
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| 278 | self._check_ctrls(item) |
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| 279 | |
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| 280 | def _check_ctrls(self, item, is_button=False): |
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| 281 | """ |
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| 282 | """ |
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| 283 | flag = True |
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| 284 | item.SetBackgroundColour("white") |
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| 285 | try: |
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| 286 | val = float(item.GetValue()) |
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| 287 | if val < -10.0 or val > 10.0: |
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| 288 | item.SetBackgroundColour("pink") |
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| 289 | item.Refresh() |
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| 290 | flag = False |
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| 291 | except: |
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| 292 | item.SetBackgroundColour("pink") |
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| 293 | item.Refresh() |
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| 294 | flag = False |
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| 295 | if not flag and is_button: |
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| 296 | err_msg = "The allowed range of the min and max values are \n" |
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| 297 | err_msg += "between -10 and 10." |
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| 298 | if self.base is not None: |
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| 299 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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| 300 | info="error")) |
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| 301 | else: |
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| 302 | print err_msg |
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| 303 | return flag |
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| 304 | |
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| 305 | def _on_z_enter(self, event=None): |
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| 306 | """ |
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| 307 | On z factor enter |
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| 308 | """ |
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| 309 | item = event.GetEventObject() |
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| 310 | self._check_z_ctrl(item) |
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| 311 | |
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| 312 | def _check_z_ctrl(self, item, is_button=False): |
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| 313 | """ |
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| 314 | """ |
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| 315 | flag = True |
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| 316 | item.SetBackgroundColour("white") |
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| 317 | try: |
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| 318 | val = float(item.GetValue()) |
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| 319 | if val <= 0: |
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| 320 | item.SetBackgroundColour("pink") |
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| 321 | item.Refresh() |
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| 322 | flag = False |
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| 323 | except: |
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| 324 | item.SetBackgroundColour("pink") |
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| 325 | item.Refresh() |
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| 326 | flag = False |
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| 327 | if not flag and is_button: |
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| 328 | err_msg = "The z scale value should be larger than 0." |
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| 329 | if self.base is not None: |
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| 330 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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| 331 | info="error")) |
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| 332 | else: |
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| 333 | print err_msg |
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| 334 | return flag |
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| 335 | |
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| 336 | def on_set(self, event): |
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| 337 | """ |
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| 338 | Set image as data |
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| 339 | """ |
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| 340 | event.Skip() |
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| 341 | # Check the textctrl values |
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| 342 | for item_list in self.xy_ctrls: |
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| 343 | for item in item_list: |
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| 344 | if not self._check_ctrls(item, True): |
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| 345 | return |
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| 346 | if not self._check_z_ctrl(self.z_ctrl, True): |
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| 347 | return |
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| 348 | try: |
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| 349 | image = self.image |
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| 350 | xmin = float(self.xy_ctrls[0][0].GetValue()) |
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| 351 | xmax = float(self.xy_ctrls[0][1].GetValue()) |
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| 352 | ymin = float(self.xy_ctrls[1][0].GetValue()) |
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| 353 | ymax = float(self.xy_ctrls[1][1].GetValue()) |
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| 354 | zscale = float(self.z_ctrl.GetValue()) |
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| 355 | self.convert_image(image, xmin, xmax, ymin, ymax, zscale) |
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| 356 | except: |
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| 357 | err_msg = "Error occurred while converting Image to Data." |
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| 358 | if self.base is not None: |
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| 359 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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| 360 | info="error")) |
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| 361 | else: |
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| 362 | print err_msg |
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| 363 | |
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| 364 | self.OnClose(event) |
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| 365 | |
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| 366 | def convert_image(self, rgb, xmin, xmax, ymin, ymax, zscale): |
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| 367 | """ |
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| 368 | Convert image to data2D |
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| 369 | """ |
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| 370 | x_len = len(rgb[0]) |
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| 371 | y_len = len(rgb) |
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| 372 | x_vals = np.linspace(xmin, xmax, num=x_len) |
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| 373 | y_vals = np.linspace(ymin, ymax, num=y_len) |
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| 374 | # Instantiate data object |
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| 375 | output = Data2D() |
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| 376 | output.filename = os.path.basename(self.title) |
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| 377 | output.id = output.filename |
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| 378 | detector = Detector() |
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| 379 | detector.pixel_size.x = None |
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| 380 | detector.pixel_size.y = None |
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| 381 | # Store the sample to detector distance |
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| 382 | detector.distance = None |
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| 383 | output.detector.append(detector) |
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| 384 | # Initiazed the output data object |
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| 385 | output.data = zscale * self.rgb2gray(rgb) |
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| 386 | output.err_data = np.zeros([x_len, y_len]) |
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| 387 | output.mask = np.ones([x_len, y_len], dtype=bool) |
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| 388 | output.xbins = x_len |
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| 389 | output.ybins = y_len |
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| 390 | output.x_bins = x_vals |
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| 391 | output.y_bins = y_vals |
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| 392 | output.qx_data = np.array(x_vals) |
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| 393 | output.qy_data = np.array(y_vals) |
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| 394 | output.xmin = xmin |
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| 395 | output.xmax = xmax |
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| 396 | output.ymin = ymin |
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| 397 | output.ymax = ymax |
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| 398 | output.xaxis('\\rm{Q_{x}}', '\AA^{-1}') |
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| 399 | output.yaxis('\\rm{Q_{y}}', '\AA^{-1}') |
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| 400 | # Store loading process information |
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| 401 | output.meta_data['loader'] = self.title.split('.')[-1] + "Reader" |
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| 402 | output.is_data = True |
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| 403 | output = reader2D_converter(output) |
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| 404 | if self.base != None: |
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| 405 | data = self.base.create_gui_data(output, self.title) |
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| 406 | self.base.add_data({data.id:data}) |
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| 407 | |
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| 408 | def rgb2gray(self, rgb): |
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| 409 | """ |
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| 410 | RGB to Grey |
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| 411 | """ |
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| 412 | if self.is_png: |
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| 413 | # png image limits: 0 to 1, others 0 to 255 |
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| 414 | #factor = 255.0 |
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| 415 | rgb = rgb[::-1] |
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| 416 | if rgb.ndim == 2: |
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| 417 | grey = np.rollaxis(rgb, axis=0) |
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| 418 | else: |
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| 419 | red, green, blue = np.rollaxis(rgb[..., :3], axis= -1) |
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| 420 | grey = 0.299 * red + 0.587 * green + 0.114 * blue |
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| 421 | max_i = rgb.max() |
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| 422 | factor = 255.0 / max_i |
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| 423 | grey *= factor |
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| 424 | return np.array(grey) |
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| 425 | |
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| 426 | def OnClose(self, event): |
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| 427 | """ |
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| 428 | Close event |
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| 429 | """ |
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| 430 | # clear event |
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| 431 | event.Skip() |
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| 432 | self.Destroy() |
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| 433 | |
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| 434 | if __name__ == "__main__": |
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| 435 | app = wx.App() |
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| 436 | ImageView(None).load() |
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| 437 | app.MainLoop() |
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| 438 | |
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