2 TestConstraintDistance.py
3 Unit test of SketchPlugin_ConstraintDistance class
5 SketchPlugin_Constraint
6 static const std::string MY_CONSTRAINT_VALUE("ConstraintValue");
7 static const std::string MY_FLYOUT_VALUE_PNT("ConstraintFlyoutValuePnt");
8 static const std::string MY_ENTITY_A("ConstraintEntityA");
9 static const std::string MY_ENTITY_B("ConstraintEntityB");
10 static const std::string MY_ENTITY_C("ConstraintEntityC");
11 static const std::string MY_ENTITY_D("ConstraintEntityD");
13 SketchPlugin_ConstraintDistance
14 static const std::string MY_CONSTRAINT_DISTANCE_ID("SketchConstraintDistance");
15 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
16 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
17 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
18 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
22 from GeomDataAPI import *
23 from ModelAPI import *
25 #=========================================================================
26 # Initialization of the test
27 #=========================================================================
29 __updated__ = "2014-10-28"
32 def distancePointPoint(pointA, pointB):
34 subroutine to calculate distance between two points
35 result of calculated distance is has 10**-5 precision
37 xdiff = math.pow((pointA.x() - pointB.x()), 2)
38 ydiff = math.pow((pointA.y() - pointB.y()), 2)
39 return round(math.sqrt(xdiff + ydiff), 5)
41 def distancePointLine(point, line):
43 subroutine to calculate distance between point and line
44 result of calculated distance is has 10**-5 precision
46 aStartPoint = geomDataAPI_Point2D(line.attribute("StartPoint"))
47 aEndPoint = geomDataAPI_Point2D(line.attribute("EndPoint"))
48 # orthogonal direction
49 aDirX = -(aEndPoint.y() - aStartPoint.y())
50 aDirY = (aEndPoint.x() - aStartPoint.x())
51 aLen = math.sqrt(aDirX**2 + aDirY**2)
54 aVecX = point.x() - aStartPoint.x()
55 aVecY = point.y() - aStartPoint.y()
56 return round(math.fabs(aVecX * aDirX + aVecY * aDirY), 5)
58 aSession = ModelAPI_Session.get()
59 aDocument = aSession.moduleDocument()
60 #=========================================================================
61 # Creation of a sketch
62 #=========================================================================
63 aSession.startOperation()
64 aSketchCommonFeature = aDocument.addFeature("Sketch")
65 aSketchFeature = featureToCompositeFeature(aSketchCommonFeature)
66 origin = geomDataAPI_Point(aSketchFeature.attribute("Origin"))
67 origin.setValue(0, 0, 0)
68 dirx = geomDataAPI_Dir(aSketchFeature.attribute("DirX"))
69 dirx.setValue(1, 0, 0)
70 norm = geomDataAPI_Dir(aSketchFeature.attribute("Norm"))
71 norm.setValue(0, 0, 1)
72 aSession.finishOperation()
73 #=========================================================================
74 # Create a point and a line
75 #=========================================================================
76 aSession.startOperation()
77 aSketchPoint = aSketchFeature.addFeature("SketchPoint")
78 aSketchPointCoords = geomDataAPI_Point2D(
79 aSketchPoint.attribute("PointCoordindates"))
80 aSketchPointCoords.setValue(50., 50.)
81 aSketchLine = aSketchFeature.addFeature("SketchLine")
82 aLineAStartPoint = geomDataAPI_Point2D(aSketchLine.attribute("StartPoint"))
83 aLineAEndPoint = geomDataAPI_Point2D(aSketchLine.attribute("EndPoint"))
84 aLineAStartPoint.setValue(0., 25.)
85 aLineAEndPoint.setValue(100., 25.)
86 aSession.finishOperation()
87 #=========================================================================
88 # Make a constraint to keep the distance
89 #=========================================================================
91 aDist = distancePointPoint(aSketchPointCoords, aLineAStartPoint);
92 assert (aDist != PT_PT_DIST)
93 aSession.startOperation()
94 aConstraint = aSketchFeature.addFeature("SketchConstraintDistance")
95 aDistance = aConstraint.real("ConstraintValue")
96 refattrA = aConstraint.refattr("ConstraintEntityA")
97 refattrB = aConstraint.refattr("ConstraintEntityB")
98 assert (not aDistance.isInitialized())
99 assert (not refattrA.isInitialized())
100 assert (not refattrB.isInitialized())
101 aLineResult = aSketchLine.firstResult()
102 assert (aLineResult is not None)
103 # the following line is necessary to check automatic calculation of a distance
104 aConstraint.execute()
105 refattrA.setAttr(aSketchPointCoords)
106 refattrB.setAttr(aLineAStartPoint)
107 aFlyoutPoint = geomDataAPI_Point2D(aConstraint.attribute("ConstraintFlyoutValuePnt"))
108 aFlyoutPoint.setValue(50.0, 100.0)
109 aSession.finishOperation()
110 assert (refattrA.isInitialized())
111 assert (refattrB.isInitialized())
112 assert (aDistance.isInitialized())
113 assert math.fabs(aDistance.value() - aDist) < 1.e-4, "Distance values are different: {0} != {1}".format(aDistance.value(), aDist)
114 #=========================================================================
115 # Change distance value
116 #=========================================================================
117 aSession.startOperation()
118 aDistance.setValue(PT_PT_DIST)
119 aSession.finishOperation()
120 assert (math.fabs(distancePointPoint(aSketchPointCoords, aLineAStartPoint) - PT_PT_DIST) < 1.e-10)
121 #=========================================================================
122 # Move line, check that distance is constant
123 #=========================================================================
124 aSession.startOperation()
125 aLineAStartPoint.setValue(0., 40.)
126 aLineAEndPoint.setValue(100., 40.)
127 aSession.finishOperation()
128 assert (math.fabs(distancePointPoint(aSketchPointCoords, aLineAStartPoint) - PT_PT_DIST) < 1.e-10)
129 #=========================================================================
130 # Remove constraint, check the points are unconstrained now
131 #=========================================================================
132 aSession.startOperation()
133 aDocument.removeFeature(aConstraint)
134 aSession.finishOperation()
135 aSession.startOperation()
136 aSketchPointCoords.setValue(0., 0.)
137 aSession.finishOperation()
138 assert (math.fabs(distancePointPoint(aSketchPointCoords, aLineAStartPoint) - PT_PT_DIST) > 1.e-10)
140 #=========================================================================
141 # Add distance between point and line
142 #=========================================================================
144 aDist = distancePointLine(aSketchPointCoords, aSketchLine)
145 aSession.startOperation()
146 aConstraint = aSketchFeature.addFeature("SketchConstraintDistance")
147 aDistance = aConstraint.real("ConstraintValue")
148 refattrA = aConstraint.refattr("ConstraintEntityA")
149 refattrB = aConstraint.refattr("ConstraintEntityB")
150 assert (not aDistance.isInitialized())
151 assert (not refattrA.isInitialized())
152 assert (not refattrB.isInitialized())
153 aLineResult = aSketchLine.firstResult()
154 assert (aLineResult is not None)
155 refattrA.setObject(aLineResult)
156 refattrB.setAttr(aSketchPointCoords)
157 aFlyoutPoint = geomDataAPI_Point2D(aConstraint.attribute("ConstraintFlyoutValuePnt"))
158 aFlyoutPoint.setValue(50.0, 100.0)
159 aSession.finishOperation()
160 assert (refattrA.isInitialized())
161 assert (refattrB.isInitialized())
162 assert (aDistance.isInitialized())
163 assert math.fabs(aDistance.value() - aDist) < 1.e-4, "Distance values are different: {0} != {1}".format(aDistance.value(), aDist)
164 #=========================================================================
165 # Change distance value
166 #=========================================================================
167 aSession.startOperation()
168 aDistance.setValue(PT_LINE_DIST)
169 aSession.finishOperation()
170 assert (math.fabs(distancePointLine(aSketchPointCoords, aSketchLine) - PT_LINE_DIST) < 1.e-10)
171 #=========================================================================
172 # Set distance between line boundaries
173 #=========================================================================
174 aSession.startOperation()
175 refattrA.setAttr(aLineAStartPoint)
176 refattrB.setAttr(aLineAEndPoint)
177 aSession.finishOperation()
178 assert (math.fabs(distancePointPoint(aLineAStartPoint, aLineAEndPoint) - PT_LINE_DIST) < 1.e-10)
179 #=========================================================================
181 #=========================================================================