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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
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