The JMAG-Designer Geometry Editor provides the functions to create 2D and 3D shapes.
To create a 3D shape, first create a part and specify a plane to create a 2D sketch.
Draw basic shapes in the sketch and define a closed region using a collection of basic shapes.
Then, define an extrusion of the sketch in the part to create a solid; this is the basic creation procedure.
This script creates a rectangular region and then defines an extrusion to create a rectangular prism solid.
Preconditions
None
Script Function
- Create a part and set it to editable status.
- Create a sketch on the XY plane and set it to editable status.
- Set the starting point to X=10, Y=10, and create a line with the specified width in the + direction.
- Apply a constraint(fixation) to the vertex of the starting point.
- Apply a constraint(horizontality) to the line in the X direction and a constraint(verticality) to the line in the Y direction.
- Apply a constraint(distance) between two parallel lines.
- Select the four created lines, create a region, and finish editing the sketch.
- Define an extrusion targeting the created sketch.
The extrusion type is set to both sides, and the extrusion height is set to half of the specified height.
# Copyright (c) 2026 JSOL CORPORATION
#
# This script is released under the MIT License.
# See the full license text at:
# https://www.jmag-international.com/scriptlibrary/jmag_script_library_mit/
# Horizontal(X) Width of the Rectangular
HW = 20
# Vertical(Y) Width of the Rectangular
VW = 10
# Height(Z) of a Rectangular Prism
H = 10
def createRectangleRegion(geomDoc, sketch):
"""Create a region by drawing a rectangle with a point, height and width in the sketch. And apply distance constraints to the height and width"""
sketch.OpenSketch()
leftBottomX = 10
leftBottomY = 10
rightTopX = leftBottomX + HW
reghtTopY = leftBottomY + VW
bottomLine = sketch.CreateLineByLengthAngle(leftBottomX, leftBottomY, HW, 0)
startVertex = bottomLine.GetStartVertex()
refStartVertex = geomDoc.CreateReferenceFromItem(startVertex)
# fixture: Constraint(Fixation)
sketch.CreateMonoConstraint(u"fixture", refStartVertex)
refBottomLine = geomDoc.CreateReferenceFromItem(bottomLine)
leftLine = sketch.CreateLineByLengthAngle(leftBottomX, leftBottomY, VW, 90)
refLeftLine = geomDoc.CreateReferenceFromItem(leftLine)
topLine = sketch.CreateLineByLengthAngle(leftBottomX, reghtTopY, HW, 0)
refTopLine = geomDoc.CreateReferenceFromItem(topLine)
rightLine = sketch.CreateLineByLengthAngle(rightTopX, leftBottomY, VW, 90)
refRightLine = geomDoc.CreateReferenceFromItem(rightLine)
# horizontality: Constraint(Horizontality)
# verticality: Constraint(Verticality)
# distance: Constraint(Distance)
sketch.CreateMonoConstraint(u"horizontality", refBottomLine)
sketch.CreateMonoConstraint(u"horizontality", refTopLine)
sketch.CreateMonoConstraint(u"verticality", refLeftLine)
sketch.CreateMonoConstraint(u"verticality", refRightLine)
VWDistanceConstraint = sketch.CreateBiConstraint("distance", refBottomLine, refTopLine)
VWDistanceConstraint.SetName(u"VW")
HWDistanceConstraint = sketch.CreateBiConstraint("distance", refLeftLine, refRightLine)
HWDistanceConstraint.SetName(u"HW")
selection = geomDoc.GetSelection()
selection.Clear()
selection.Add(bottomLine)
selection.Add(leftLine)
selection.Add(topLine)
selection.Add(rightLine)
sketch.CreateRegions()
selection.Clear()
sketch.CloseSketch()
def createRectangularPrismPart(geomDoc):
"""As a part, create a rectangular region on the XY plane and create a rectangular prism by extrusion."""
assembly = geomDoc.GetAssembly()
rectPart = assembly.CreatePart()
rectPart.SetName(u"RectangularPrism")
rectPart.SetProperty(u"Color", u"navy")
rectPart.OpenPart()
refPlane = rectPart.GetPlaneXY()
# Create a sketch on the XY Plane
sketchOnXYPlane = rectPart.CreateSketch(refPlane)
createRectangleRegion(geomDoc, sketchOnXYPlane)
extrude = rectPart.CreateExtrudeSolid(sketchOnXYPlane, H/2)
# Set extrude type to [Both Sides]
extrude.SetTypeByName(u"BothSides")
rectPart.ClosePart()
app = designer.GetApplication()
geomApp = app.CreateGeometryEditor()
geomDoc = geomApp.GetDocument()
createRectangularPrismPart(geomDoc)
