Topology shapes have the ability to undergo geometric transformations such as translation, scaling, rotation, and mirroring. Typically, these transformation interfaces are divided into two types: Translate* and Translated*. The former performs the transformation on the calling object itself, while the latter creates a copy of the calling object, performs the transformation on the copy, and then returns the copy.
To keep the code concise, here is a utility function defined to add a shape to the document:
typescript
function addShapeToDoc(theShape: Mx3dShapeObject, color?: Mx3dGeColor){
// Get the document
const doc = mxcad3d.getDocument();
// Add a shape label
const label = doc.addShapeLabel();
// Set the shape
label.setShape(theShape);
// Set the color
if(color) label.setColor(color);
}Translation
typescript
const csysr = new Mx3dGeCSYSR();
csysr.SetLocation(450, 0, 0);
const box = new Mx3dMkBox(csysr, 20, 20, 20);
const boxShape = box.Shape();
const movedBoxShape = boxShape.TranslatedByVec(new Mx3dGeVec(0, 50, 0));
addShapeToDoc(boxShape);
addShapeToDoc(movedBoxShape);
// Update display (will update the model displayed in the canvas)
mxcad3d.update();Scaling
typescript
const csysr = new Mx3dGeCSYSR();
csysr.SetLocation(500, 0, 0);
const box = new Mx3dMkBox(csysr, 20, 20, 20);
const boxShape = box.Shape();
const movedBoxShape = boxShape.TranslatedByVec(new Mx3dGeVec(0, 50, 0));
movedBoxShape.Scale(new Mx3dGePoint(510, 50, 0), 2);
addShapeToDoc(boxShape);
addShapeToDoc(movedBoxShape);
// Update display (will update the model displayed in the canvas)
mxcad3d.update();Rotation
typescript
const csysr = new Mx3dGeCSYSR();
csysr.SetLocation(550, 0, 0);
const box = new Mx3dMkBox(csysr, 20, 20, 20);
const boxShape = box.Shape();
const movedBoxShape = boxShape.TranslatedByVec(new Mx3dGeVec(0, 50, 0));
const axis = new Mx3dGeAxis(new Mx3dGePoint(560, 60, 0), new Mx3dGeDir(0, 0, 1));
movedBoxShape.Rotate(axis, Math.PI / 4);
addShapeToDoc(boxShape);
addShapeToDoc(movedBoxShape);
// Update display (will update the model displayed in the canvas)
mxcad3d.update();Mirroring
typescript
const csysr = new Mx3dGeCSYSR();
csysr.SetLocation(600, 0, 0);
const box = new Mx3dMkBox(csysr, 20, 20, 20);
const boxShape = box.Shape();
const axis = new Mx3dGeAxis(new Mx3dGePoint(615, 30, 0), new Mx3dGeDir(0, 0, 1));
const mirroredBoxShape = boxShape.MirroredByAxis(axis);
addShapeToDoc(boxShape);
addShapeToDoc(mirroredBoxShape);
// Update display (will update the model displayed in the canvas)
mxcad3d.update();