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-struct sCAD
-{
- int nLineGroup = 0; // 0-3
-
- pen
- // A
- pA,
- pVisibleEdge, // Sichtbare Kanten
- pVisibleContour, // Sichtbarer Umriss
- pUsableWindingLength, // Nitzbare Gewindelänge
- pSystemLine, // Systemlinie (Stahlbau)
- pDiagramCurve, // Kurve in Diagrammen
- pSurfaceStructure, // Oberflächenstrukturen
- // B
- pB,
- pLightEdge, // Lichtkante
- pMeasureLine, // Maßlinie
- pMeasureHelpLine, // Maßhilfslinie
- pMeasureLineBound, // Maßlinienbegrenzung
- pReferenceLine, // Hinweislinie
- pHatch, // Schraffur
- pWindingGround, // Gewindegrund
- pDiagonalCross, // Diagonalkreuz
- pBendLine, // Biegelinie
- pProjectionLine, // Projektionslinie
- pGrid, // Rasterlinien
- // C
- pC,
- pFreehand, // Begrenzung abgebrochener oder unterbrochener
- // Schnitte, wenn die Begrenzung
- // keine Mittellinie ist
- // E
- pE,
- pSurfaceTreatmentAllowed, // Bereich zulässiger Oberflächenbehandlung
- // F
- pF,
- pInvisibleEdge, // unsichtbare Kante
- pInvisibleContour, // unsichtbarer Umriss
- // G
- pG,
- pMiddleLine, // Mittellinie
- pSymmetryLine, // Symmetrielinie
- pPartialCircle, // Teilkreis
- pCircularHole, // Lochkreis
- pDivisionPlane, // Teilungsebene
- pTransferLine, // Trajektorien (Übertragunslinien)
- // J
- pJ,
- pCuttingPlane, // Schnittebene
- pSurfaceTreatmentRequested, // Bereich geforderter Behandlungen
- // K
- pK,
- pContourBeforeDeformation, // Umrisse vor Verformung
- pAdjacentPartContour, // Umrisse angrenzender Teile
- pEndShapeRawMaterial, // Fertigformen in Rohteilen
- pContourEligibleType, // Umrisse wahlweiser Ausführungen
- pPartInFrontOfCuttingPlane; // Teile vor der Schnittebene
-
-
-
- static sCAD Create(int nLineGroup = 1)
- {
- sCAD cad = new sCAD;
- if ( nLineGroup < 0 )
- nLineGroup = 0;
- if ( nLineGroup > 3 )
- nLineGroup = 3;
- cad.nLineGroup = nLineGroup;
-
- restricted real[] dblFullWidth = {0.35mm, 0.5mm, 0.7mm, 1.0mm};
- restricted real[] dblHalfWidth = {0.18mm, 0.25mm, 0.35mm, 0.5mm};
-
- pen pFullWidth = linewidth(dblFullWidth[nLineGroup]);
- pen pHalfWidth = linewidth(dblHalfWidth[nLineGroup]);
-
- // Linienarten:
- // A
- cad.pA =
- cad.pVisibleEdge =
- cad.pVisibleContour =
- cad.pUsableWindingLength =
- cad.pSystemLine =
- cad.pDiagramCurve =
- cad.pSurfaceStructure =
- pFullWidth + solid;
- // B
- cad.pB =
- cad.pLightEdge =
- cad.pMeasureLine =
- cad.pMeasureHelpLine =
- cad.pMeasureLineBound =
- cad.pReferenceLine =
- cad.pHatch =
- cad.pWindingGround =
- cad.pDiagonalCross =
- cad.pBendLine =
- cad.pProjectionLine =
- cad.pGrid =
- pHalfWidth + solid;
- // C
- cad.pC =
- cad.pFreehand =
- pHalfWidth + solid;
- // D
- // Missing, as I have no idea how to implement this...
- // E
- cad.pE =
- cad.pSurfaceTreatmentAllowed =
- pFullWidth + linetype(new real[] {10,2.5});
- // F
- cad.pF =
- cad.pInvisibleEdge =
- cad.pInvisibleContour =
- pHalfWidth + linetype(new real[] {20,5});
- // G
- cad.pG =
- cad.pMiddleLine =
- cad.pSymmetryLine =
- cad.pPartialCircle =
- cad.pCircularHole =
- cad.pDivisionPlane =
- cad.pTransferLine =
- pHalfWidth + linetype(new real[] {40,5,5,5});
- // H
- // see J
- // I
- // This letter is not used in DIN 15
- // J
- cad.pJ =
- cad.pCuttingPlane =
- cad.pSurfaceTreatmentRequested =
- pFullWidth + linetype(new real[] {20,2.5,2.5,2.5});
- // K
- cad.pK =
- cad.pContourBeforeDeformation =
- cad.pAdjacentPartContour =
- cad.pEndShapeRawMaterial =
- cad.pContourEligibleType =
- cad.pPartInFrontOfCuttingPlane =
- pHalfWidth + linetype(new real[] {40,5,5,5,5,5});
-
- return cad;
- } // end of Create
-
-
-
- real GetMeasurementBoundSize(bool bSmallBound = false)
- {
- if ( bSmallBound )
- return 1.5 * linewidth(pVisibleEdge) / 2;
- else
- return 5 * linewidth(pVisibleEdge);
- }
-
-
-
- path GetMeasurementBound(bool bSmallBound = false)
- {
- if ( bSmallBound )
- return scale(GetMeasurementBoundSize(bSmallBound = bSmallBound)) *
- unitcircle;
- else
- return (0,0) --
- (-cos(radians(7.5)), -sin(radians(7.5))) *
- GetMeasurementBoundSize(bSmallBound = bSmallBound) --
- (-cos(radians(7.5)), sin(radians(7.5))) *
- GetMeasurementBoundSize(bSmallBound = bSmallBound) --
- cycle;
- }
-
-
-
- void MeasureLine(picture pic = currentpicture,
- Label L,
- pair pFrom,
- pair pTo,
- real dblLeft = 0,
- real dblRight = 0,
- real dblRelPosition = 0.5,
- bool bSmallBound = false)
- {
- if ( dblLeft < 0 )
- dblLeft = 0;
- if ( dblRight < 0 )
- dblRight = 0;
- if ( (dblLeft > 0) && (dblRight == 0) )
- dblRight = dblLeft;
- if ( (dblLeft == 0) && (dblRight > 0) )
- dblLeft = dblRight;
- pair pDiff = pTo - pFrom;
- real dblLength = length(pDiff);
- pair pBegin = pFrom - dblLeft * unit(pDiff);
- pair pEnd = pTo + dblRight * unit(pDiff);
- if ( bSmallBound )
- {
- draw(
- pic = pic,
- g = pBegin--pEnd,
- p = pMeasureLine);
- }
- else
- {
- real dblBoundSize = GetMeasurementBoundSize(bSmallBound = bSmallBound);
- if ( dblLeft == 0 )
- draw(
- pic = pic,
- g = (pFrom + dblBoundSize/2 * unit(pDiff))
- -- (pTo - dblBoundSize/2 * unit(pDiff)),
- p = pMeasureLine);
- else
- draw(
- pic = pic,
- g = pBegin -- (pFrom - dblBoundSize/2 * unit(pDiff))
- ^^ pFrom -- pTo
- ^^ (pTo + dblBoundSize/2 * unit(pDiff)) -- pEnd,
- p = pMeasureLine);
- }
- path gArrow = GetMeasurementBound(bSmallBound = bSmallBound);
- picture picL;
- label(picL, L);
- pair pLabelSize = 1.2 * (max(picL) - min(picL));
- if ( dblLeft == 0 )
- {
- fill(
- pic = pic,
- g = shift(pFrom) * rotate(degrees(-pDiff)) * gArrow,
- p = pVisibleEdge);
- fill(
- pic = pic,
- g = shift(pTo) * rotate(degrees(pDiff)) * gArrow,
- p = pVisibleEdge);
- if ( dblRelPosition < 0 )
- dblRelPosition = 0;
- if ( dblRelPosition > 1 )
- dblRelPosition = 1;
- label(
- pic = pic,
- L = rotate(degrees(pDiff)) * L,
- position =
- pFrom
- + dblRelPosition * pDiff
- + unit(rotate(90)*pDiff) * pLabelSize.y / 2);
- }
- else
- {
- fill(
- pic = pic,
- g = shift(pFrom) * rotate(degrees(pDiff)) * gArrow,
- p = pVisibleEdge);
- fill(
- pic = pic,
- g = shift(pTo) * rotate(degrees(-pDiff)) * gArrow,
- p = pVisibleEdge);
- if ( (dblRelPosition >= 0) && (dblRelPosition <= 1) )
- label(
- pic = pic,
- L = rotate(degrees(pDiff)) * L,
- position =
- pFrom
- + dblRelPosition * pDiff
- + unit(rotate(90)*pDiff) * pLabelSize.y / 2);
- else
- {
- // draw label outside
- if ( dblRelPosition < 0 )
- label(
- pic = pic,
- L = rotate(degrees(pDiff)) * L,
- position =
- pBegin
- + pLabelSize.x / 2 * unit(pDiff)
- + unit(rotate(90)*pDiff) * pLabelSize.y / 2);
- else
- // dblRelPosition > 1
- label(
- pic = pic,
- L = rotate(degrees(pDiff)) * L,
- position =
- pEnd
- - pLabelSize.x / 2 * unit(pDiff)
- + unit(rotate(90)*pDiff) * pLabelSize.y / 2);
- }
- }
- } // end of MeasureLine
-
-
-
- void MeasureParallel(picture pic = currentpicture,
- Label L,
- pair pFrom,
- pair pTo,
- real dblDistance,
- // Variables from MeasureLine
- real dblLeft = 0,
- real dblRight = 0,
- real dblRelPosition = 0.5,
- bool bSmallBound = false)
- {
- pair pDiff = pTo - pFrom;
- pair pPerpendicularDiff = unit(rotate(90) * pDiff);
- real dblDistancePlus;
- if ( dblDistance >= 0 )
- dblDistancePlus = dblDistance + 1mm;
- else
- dblDistancePlus = dblDistance - 1mm;
- draw(
- pic = pic,
- g = pFrom--(pFrom + dblDistancePlus*pPerpendicularDiff),
- p = pMeasureHelpLine
- );
- draw(
- pic = pic,
- g = pTo--(pTo + dblDistancePlus*pPerpendicularDiff),
- p = pMeasureHelpLine
- );
- MeasureLine(
- pic = pic,
- L = L,
- pFrom = pFrom + dblDistance * pPerpendicularDiff,
- pTo = pTo + dblDistance * pPerpendicularDiff,
- dblLeft = dblLeft,
- dblRight = dblRight,
- dblRelPosition = dblRelPosition,
- bSmallBound = bSmallBound);
- } // end of MeasureParallel
-
-
-
- path MakeFreehand(pair pFrom, pair pTo,
- real dblRelDivisionLength = 12.5,
- real dblRelDistortion = 2.5,
- bool bIncludeTo = true)
- {
- pair pDiff = pTo - pFrom;
- pair pPerpendicular = dblRelDistortion * linewidth(pFreehand) *
- unit(rotate(90) * pDiff);
-
- int nNumOfSubDivisions=ceil(length(pDiff) /
- (dblRelDivisionLength * linewidth(pFreehand)));
-
- restricted real[] dblDistortion = {1, -.5, .75, -.25, .25, -1, .5, -.75,
- .25, -.25};
- int nDistortion = 0;
-
- guide g;
- g = pFrom;
- for ( int i = 1 ; i < nNumOfSubDivisions ; ++i )
- {
- g = g ..
- (pFrom
- + pDiff * i / (real)nNumOfSubDivisions
- + pPerpendicular * dblDistortion[nDistortion]);
- nDistortion += 1;
- if ( nDistortion > 9 )
- nDistortion = 0;
- }
-
- if ( bIncludeTo )
- g = g .. pTo;
-
- return g;
- } // end of MakeFreehand
-
-
-
-} // end of CAD
-