Orientate BlockRef

[schoeller]

Thanks for PyRx.
I have generated code to create a blockref from a section. I have trouble orientating and referencing in space.

Code:

import traceback
from pyrx import Ge, Db, Ap

def createSolids(db: Db.Database):
    # creating solid
    sourceIds = []
    solid1 =  Db.Solid3d()
    solid1.createWedge(1,1,1)
    sid = db.addToModelspace(solid1)
    sourceIds.append(sid)
    solid2 =  Db.Solid3d()
    solid2.createBox(.5,.5,.5)
    sid = db.addToModelspace(solid2)
    sourceIds.append(sid)
    return sourceIds

def defineSection(db: Db.Database, pts: list[Ge.Point3d], ids: list[Db.ObjectId]):
    # setting up section
    st = Db.SectionType.k2dSection
    sec = Db.Section(pts, Ge.Vector3d.kZAxis)
    sec.setState(Db.SectionState.kPlane)
    sec.enableLiveSection(False)
    sec.setHeight(Db.SectionHeight.kHeightAboveSectionLine, 3.0)
    sec.setHeight(Db.SectionHeight.kHeightBelowSectionLine, 1.0)
    sec.setName(str(sec.getHandle()))
    secid = db.addToModelspace(sec)
    # configuring section
    ss = Db.SectionSettings(sec.getSettings(), Db.OpenMode.kForWrite)
    ss.setCurrentSectionType(st)
    ss.setSourceObjects(st, ids)
    ss.setVisibility(st, Db.SectionGeometry.kBackgroundGeometry, True)
    ss.setHiddenLine(st, Db.SectionGeometry.kBackgroundGeometry, False)
    opts = (
        Db.SectionGeneration.kSourceSelectedObjects | Db.SectionGeneration.kDestinationFile
    )
    ss.setGenerationOptions(st, Db.SectionGeneration(opts))
    return sec

def createSectionBlock(db : Db.Database, name : str, ents: list[Db.Entity]):
    bt = Db.BlockTable(db.blockTableId(), Db.OpenMode.kForWrite)
    btr = Db.BlockTableRecord()
    btr.setName(name)
    btrid = bt.add(btr)
    btr.appendAcDbEntities(ents)
    return btrid

@Ap.Command()
def doit2() -> None:
    try:
        db = Db.curDb()
        sourceIds = createSolids(db)

        # defining section points
        pts = []
        pts.append(Ge.Point3d(0,-.5,0))
        pts.append(Ge.Point3d(0,.5,0))

        sec = defineSection(db, pts, sourceIds)

        ent = Db.Entity(sourceIds[0])
        # geo = sec.generateSectionGeometry(ent)
        # for items in geo:
        #     db.addToModelspace(items)

        section_geo = []
        for _items in sec.generateSectionGeometry(ent):
            for item in _items:
                section_geo.append(item)
        blkid = createSectionBlock(db, str(sec.getHandle()), section_geo)

    except Exception as err:
        traceback.print_exception(err)

Resulting model view:

Resulting block preview

Resulting block insert

Resulting block edit with 0,0,0 reference in isometric view

Expected block behaviour with block 0,0

I undergo the vague impression that I have to preprocess entities in createSectionBlock before calling btr.appendAcDbEntities(ents) in function of pts, but my brains are melting away.

[schoeller]

trying to learn from #348 amongst other transforming entities before addition to block and calling transformEntities before createSectionBlock:

def transformEntities(pts: list[Ge.Point3d], ents: list[Db.Entity]):
    mat = Ge.Matrix3d()
    vector = Ge.Vector3d(-pts[0].x,-pts[0].y,-pts[0].z)
    mat.setCoordSystem(Ge.Point3d(pts[0].x,pts[0].y,pts[0].z), vector, Ge.Vector3d.kZAxis, Ge.Vector3d.kYAxis)
    trans_geo = []
    for ent in ents:
        test = ent.isA()
        print(test.name())
        trans_geo.append(ent.transformBy(mat))
    return trans_geo

[schoeller]

This seems to work in exchange to doit2:

@Ap.Command()
def doit3() -> None:
    try:
        db = Db.curDb()
        sourceIds = createSolids(db)

        # defining section points
        pts = []
        pts.append(Ge.Point3d(0,-.5,0))
        pts.append(Ge.Point3d(0,.5,0))

        sec = defineSection(db, pts, sourceIds)
        mat = sec.getEcs()
        mat.setToAlignCoordSys(Ge.Point3d(pts[0].x,pts[0].y,pts[0].z), sec.plane()[0], sec.plane()[1], sec.plane()[0].rotateBy(-90, sec.plane()[1]), Ge.Point3d(0,0,0), Ge.Vector3d.kXAxis, Ge.Vector3d.kYAxis, Ge.Vector3d.kZAxis)

        ent = Db.Entity(sourceIds[0])

        section_geo = []
        for _items in sec.generateSectionGeometry(ent):
            for item in _items:
                section_geo.append(item.getTransformedCopy(mat))
        blkid = createSectionBlock(db, str(sec.getHandle()), section_geo)

    except Exception as err:
        traceback.print_exception(err)

[schoeller]

When reviewing the block geometry the hatch seems not aligned in sync to lines.

MODEL view

BEDIT view

[schoeller]

Apparently I had an error in the Ge.Matrix3d definition. This works better

        mat = Ge.Matrix3d()
        mat.setToAlignCoordSys(
            Ge.Point3d(pts[0].x,pts[0].y,pts[0].z), 
            sec.plane()[0], 
            sec.verticalDirection(),
            sec.viewingDirection(),
            Ge.Point3d.kOrigin, 
            Ge.Vector3d.kXAxis, 
            Ge.Vector3d.kYAxis, 
            Ge.Vector3d.kZAxis
            )

and scales correctly:

Sorry for the fuzz