| [959eb01] | 1 | """ |
|---|
| 2 | This software was developed by the University of Tennessee as part of the |
|---|
| 3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
|---|
| 4 | project funded by the US National Science Foundation. |
|---|
| 5 | |
|---|
| 6 | See the license text in license.txt |
|---|
| 7 | |
|---|
| 8 | copyright 2009, University of Tennessee |
|---|
| 9 | """ |
|---|
| 10 | import sas.sascalc.realspace.VolumeCanvas as VolumeCanvas |
|---|
| 11 | |
|---|
| 12 | class ShapeVisitor: |
|---|
| 13 | """ |
|---|
| 14 | The shape visitor process a GUI object representing |
|---|
| 15 | a shape and returns a shape description that can be |
|---|
| 16 | processed by the VolumeCanvas. |
|---|
| 17 | """ |
|---|
| 18 | |
|---|
| 19 | def __init__(self): |
|---|
| 20 | """ |
|---|
| 21 | Initialize visitor |
|---|
| 22 | """ |
|---|
| 23 | ## Place holder for the simulation canvas |
|---|
| 24 | self.sim_canvas = None |
|---|
| 25 | |
|---|
| 26 | def fromCylinder(self, cyl): |
|---|
| 27 | """ |
|---|
| 28 | Create a simulation cylinder descriptor (computation) |
|---|
| 29 | from the information produced by the GUI |
|---|
| 30 | @param cyl: Cylinder object from the GUI canvas |
|---|
| 31 | @return: VolumeCanvas.CylinderDescriptor object |
|---|
| 32 | """ |
|---|
| 33 | from sas.sascalc.realspace.VolumeCanvas import CylinderDescriptor |
|---|
| 34 | desc = CylinderDescriptor() |
|---|
| 35 | |
|---|
| 36 | desc.params["center"] = [cyl.x, cyl.y, cyl.z] |
|---|
| 37 | # Orientation are angular offsets in degrees with respect to X, Y, Z |
|---|
| 38 | desc.params["orientation"] = [cyl.theta_x, cyl.theta_y, cyl.theta_z] |
|---|
| 39 | desc.params["order"] = cyl.params["order"] |
|---|
| 40 | |
|---|
| 41 | |
|---|
| 42 | # Length of the cylinder |
|---|
| 43 | desc.params["length"] = cyl.params["length"] |
|---|
| 44 | # Radius of the cylinder |
|---|
| 45 | desc.params["radius"] = cyl.params["radius"] |
|---|
| 46 | # Constrast parameter |
|---|
| 47 | desc.params["contrast"] = cyl.params["contrast"] |
|---|
| 48 | |
|---|
| 49 | return desc |
|---|
| 50 | |
|---|
| 51 | def fromSphere(self, sph): |
|---|
| 52 | """ |
|---|
| 53 | Create a simulation sphere descriptor (computation) |
|---|
| 54 | from the information produced by the GUI |
|---|
| 55 | @param sph: Sphere object from the GUI canvas |
|---|
| 56 | @return: VolumeCanvas.SphereDescriptor object |
|---|
| 57 | """ |
|---|
| 58 | from sas.sascalc.realspace.VolumeCanvas import SphereDescriptor |
|---|
| 59 | desc = SphereDescriptor() |
|---|
| 60 | |
|---|
| 61 | desc.params["center"] = [sph.x, sph.y, sph.z] |
|---|
| 62 | desc.params["order"] = sph.params["order"] |
|---|
| 63 | # Radius of the sphere |
|---|
| 64 | desc.params["radius"] = sph.params["radius"] |
|---|
| 65 | # Constrast parameter |
|---|
| 66 | desc.params["contrast"] = sph.params["contrast"] |
|---|
| 67 | |
|---|
| 68 | return desc |
|---|
| 69 | |
|---|
| 70 | def update_sphere(self, sph): |
|---|
| 71 | """ |
|---|
| 72 | Update a shape description in the simulation canvas (computation) |
|---|
| 73 | according to the new parameters of the GUI canvas. |
|---|
| 74 | @param sph: Sphere object from the GUI canvas |
|---|
| 75 | """ |
|---|
| 76 | # Check class |
|---|
| 77 | if self.sim_canvas.shapes[sph.name].__class__.__name__=="SphereDescriptor": |
|---|
| 78 | desc = self.sim_canvas.shapes[sph.name] |
|---|
| 79 | |
|---|
| 80 | desc.params["center"] = [sph.x, sph.y, sph.z] |
|---|
| 81 | desc.params["order"] = sph.params["order"] |
|---|
| 82 | # Radius of the sphere |
|---|
| 83 | desc.params["radius"] = sph.params["radius"] |
|---|
| 84 | # Constrast parameter |
|---|
| 85 | desc.params["contrast"] = sph.params["contrast"] |
|---|
| 86 | |
|---|
| 87 | self.sim_canvas._model_changed() |
|---|
| 88 | else: |
|---|
| 89 | raise ValueError, "SimShapeVisitor: Wrong class for visited object" |
|---|
| 90 | |
|---|
| 91 | |
|---|
| 92 | |
|---|
| 93 | def update_cylinder(self, cyl): |
|---|
| 94 | """ |
|---|
| 95 | Update a shape description in the simulation canvas (computation) |
|---|
| 96 | according to the new parameters of the GUI canvas. |
|---|
| 97 | @param cyl: Cylinder object from the GUI canvas |
|---|
| 98 | """ |
|---|
| 99 | # Check class |
|---|
| 100 | if self.sim_canvas.shapes[cyl.name].__class__.__name__=="CylinderDescriptor": |
|---|
| 101 | desc = self.sim_canvas.shapes[cyl.name] |
|---|
| 102 | |
|---|
| 103 | desc.params["center"] = [cyl.x, cyl.y, cyl.z] |
|---|
| 104 | # Orientation are angular offsets in degrees with respect to X, Y, Z |
|---|
| 105 | desc.params["orientation"] = [cyl.theta_x, cyl.theta_y, cyl.theta_z] |
|---|
| 106 | desc.params["order"] = cyl.params["order"] |
|---|
| 107 | |
|---|
| 108 | # Length of the cylinder |
|---|
| 109 | desc.params["length"] = cyl.params["length"] |
|---|
| 110 | # Radius of the cylinder |
|---|
| 111 | desc.params["radius"] = cyl.params["radius"] |
|---|
| 112 | # Constrast parameter |
|---|
| 113 | desc.params["contrast"] = cyl.params["contrast"] |
|---|
| 114 | |
|---|
| 115 | self.sim_canvas._model_changed() |
|---|
| 116 | else: |
|---|
| 117 | raise ValueError, "SimShapeVisitor: Wrong class for visited object" |
|---|
| 118 | |
|---|
| 119 | |
|---|
| 120 | def update(self, volCanvas, shape): |
|---|
| 121 | """ |
|---|
| 122 | Update the shape descriptor in the VolumeCanvas |
|---|
| 123 | corresponding to the given 'shape' parameter |
|---|
| 124 | |
|---|
| 125 | @param volCanvas: VolumeCanvas object |
|---|
| 126 | @param shape: SimCanvas.BaseShape object |
|---|
| 127 | """ |
|---|
| 128 | if shape.name in volCanvas.getShapeList(): |
|---|
| 129 | self.sim_canvas = volCanvas |
|---|
| 130 | shape.accept_update(self) |
|---|
| 131 | else: |
|---|
| 132 | raise ValueError, "ShapeAdapter: Shape [%s] not in list" % shape.name |
|---|
| 133 | |
|---|
