[Indigo]<Chipndale>5.2>ColorPDPlot20>CDColorPDPlot.mesa!3

CDColorPDPlot.mesa

written by E. McCreight, August 1, 1983 2:00 PM

Last Edited by: McCreight, November 23, 1983 4:58 pm

Last Edited by: Jacobi, October 27, 1983 12:36 pm

Last Edited by: Jacobi, April 11, 1985 3:21:48 pm PST

Last Edited by: Kimr, October 29, 1984 9:49:48 am PST

DIRECTORY

CD,

CDBasics,

CDCommandOps,

CDExtras,

CDIO,

CDViewer,

CDPolygons,

CDMenus,

CDOps,

CDOrient,

CDProperties,

CDSequencer,

CDValue,

CGArea,

CGClipper,

CGReducer,

CornerStitching,

Graphics,

GraphicsBasic,

IO,

PDFileFormat,

PDFileWriter,

Process,

Real,

Rope,

TerminalIO,

ViewerClasses,

ViewerSpecs;

CDColorPDPlot: CEDAR PROGRAM

IMPORTS CD, CDBasics, CDCommandOps, CDExtras, CDIO, CDMenus, CDValue, CDViewer, CDOps, CDOrient, CDPolygons, CDProperties, CDSequencer, CGArea, CGClipper, CGReducer, CornerStitching, IO, PDFileWriter, Process, Real, TerminalIO =

BEGIN

--handling colors

Toner: TYPE = PDFileFormat.Toner; -- {black, cyan, magenta, yellow};

TonerKeys: TYPE = ARRAY Toner OF REF;

LoadArray: TYPE = ARRAY Toner OF PDFileWriter.LoadReference;

ColorDescription: TYPE = ARRAY CD.Layer OF REF LoadArray ← ALL[NIL];

whiteLoadRef: PDFileWriter.LoadReference = LAST[PDFileWriter.LoadReference];

-- used to identify tiles without toner so that you can avoid recording them

tonerToKeyKeys: REF TonerKeys = NEW[TonerKeys ← [

$CDxColorPDPlotBlack, $CDxColorPDPlotCyan, $CDxColorPDPlotMagenta, $CDxColorPDPlotYellow

]];

--gives a key to get the keys to get the color stipple as property of the layers

--device description

deviceCode: PDFileFormat.DeviceCode ← last;

sRes: CARDINAL ← 200; -- resolution (slow directition), pixels / inch

fRes: CARDINAL ← 200; -- resolution (fast direction), pixels / inch

scanLineWidth: CARDINAL ← 8000; --for the wide-bed Versatec, length in the "fast" direction;

toners: PDFileWriter.TonerSet ← ALL[TRUE];

leftOverMode: BOOL ← FALSE;

bandSSize: CARDINAL ← 64; -- number chosen because of buffer-size of versatec

overLap: CARDINAL ← 300; -- number of pixels by which to overlap strips

maxPixPerLambda: REAL ← 20; -- maximum # of pixels to make lambda

paged: BOOL ← FALSE;

pageSlowSize: INT ← -1; --only interesting if paged

stippleKey: ATOM ← $CDxVersatec;

tonerToKey: REF TonerKeys ← NIL;

--gives a key to get the color stipple as property of the layers

ColorVersatec: PROC [] =

BEGIN

deviceCode ← last; --does not yet has an assigned value, use "last"

sRes ← 200; -- resolution (slow directition), pixels / inch

fRes ← 200; -- resolution (fast direction), pixels / inch

scanLineWidth ← 8000; --for the wide-bed Versatec, length in the "fast" direction;

toners ← ALL[TRUE];

bandSSize ← 64; -- number chosen because of buffer-size of versatec

overLap ← 300; -- number of pixels by which to overlap strips

maxPixPerLambda ← 20; -- maximum # of pixels to make lambda

paged ← FALSE;

leftOverMode ← FALSE;

stippleKey ← $CDxVersatec;

TerminalIO.WriteRope["color versatec"];

END;

InkJet: PROC [] =

BEGIN

deviceCode ← last;

sRes ← 120; -- resolution (slow directition), pixels / inch

fRes ← 120; -- resolution (fast direction), pixels / inch

scanLineWidth ← 120/10*75; --

toners ← ALL[TRUE];

bandSSize ← 64; --

overLap ← 30; -- number of pixels by which to overlap strips

maxPixPerLambda ← 20; -- maximum # of pixels to make lambda

paged ← FALSE;

leftOverMode ← FALSE;

stippleKey ← $CDxVersatec;

TerminalIO.WriteRope["ink jet"];

END;

Puffin: PROC [] =

BEGIN

deviceCode ← PDFileFormat.DeviceCode[puffin];

sRes ← 384; -- resolution (slow directition), pixels / inch

fRes ← 384; -- resolution (fast direction), pixels / inch

scanLineWidth ← fRes * 17 / 2;

toners ← [FALSE, TRUE, TRUE, TRUE];

bandSSize ← 16; --

overLap ← 30; -- number of pixels by which to overlap strips

maxPixPerLambda ← 20; -- maximum # of pixels to make lambda

paged ← TRUE;

pageSlowSize ← sRes*11;

leftOverMode ← TRUE;

stippleKey ← $CDxPuffin;

TerminalIO.WriteRope["Puffin"];

END;

--state of the plot

debugging: BOOL ← FALSE;

technologyPropertyKey: REF ← $CDxLastTechnology; --a property of the stippleKey

abortPlot: REF BOOL ← NEW[BOOL ← FALSE];

PlotStateRef: TYPE = REF PlotState;

PlotState: TYPE = RECORD [

tes: ARRAY CD.Layer OF REF CornerStitching.Tesselation ← ALL[NIL],

scale: REAL ← 1.0, -- pixels per CD.DesignNumber

totalPlotClip, bandClip: CD.DesignRect ← [0, 0, 0, 0],

rectangles in design space touching all geometry in the plot, or this band

pdState: PDFileWriter.PDState,

colorLoads: REF ColorDescription,

anouncedLayer: INT ← -1

];

pdx, pdy: CARDINAL ← 0; -- origin of band in pixel coords

cdx, cdy: INT ← 0; -- origin of band in chipndale coords

xoffset, yoffset: INT ← 0; -- offset in transforming between coord systems

plotScale: REAL;

-- scale factor between systems, is negative for y-axis due to reversed direction of increasing values (when compared with pixel coordinates)

imageSSize: REAL;

imageFSize: CARDINAL;

ps: PlotStateRef;

CheckStipples: PROC [technology: CD.Technology] =

BEGIN

x: REF ← CDValue.Fetch[technology, stippleKey];

WITH x SELECT FROM

r: Rope.ROPE => {

TerminalIO.WriteRope["color stipples used: ["];

TerminalIO.WriteRope[r];

TerminalIO.WriteRope["]\n"];

}

ENDCASE => {

TerminalIO.WriteRope["**color stipples are not defined\n"];

ERROR ABORTED

};

IF technology.key#CDProperties.GetPropFromAtom[stippleKey, technologyPropertyKey] THEN

TerminalIO.WriteRope["**Warning: another technology registered in the meantime; the technology independent stipples are redefined\n"];

tonerToKey ← NEW[TonerKeys ← ALL[NIL]];

FOR t: PDFileWriter.Toner IN PDFileWriter.Toner DO

tonerToKey^[t] ← CDProperties.GetPropFromAtom[stippleKey, tonerToKeyKeys[t]];

IF ~toners[t] OR tonerToKey^[t]=NIL THEN {

toners[t] ← FALSE;

tonerToKey^[t] ← NEW[INT];

}

ENDLOOP;

END;

ProtectedPlotDesign: PROC [comm: CDSequencer.Command] =

BEGIN

design: CD.Design = comm.design;

plotClip: CD.DesignRect;

plotSize: CD.DesignPosition;

s: IO.STREAM ← NIL;

strips: INT;

TerminalIO.WriteRope["Starting Color plot for "];

SELECT comm.a FROM

$VersatecColorPlot => ColorVersatec[];

$InkJetColorPlot => InkJet[];

$PuffinColorPlot => Puffin[];

ENDCASE => ERROR;

TerminalIO.WriteLn[];

CheckStipples[design.technology];

SELECT TerminalIO.RequestSelection["Plot", LIST["complete design", "rectangle"]] FROM

2 => {

plotClip ← CDBasics.ToRect[comm.pos, comm.sPos];

TerminalIO.WriteRope["plot rectangle\n"];

};

ENDCASE => {

plotClip ← CDExtras.BoundingBox[comm.design];

TerminalIO.WriteRope["plot all\n"];

};

plotSize ← CDBasics.SizeOfRect[plotClip];

IF plotSize.x<=0 OR plotSize.y<=0 THEN {

TerminalIO.WriteRope["**cannot plot empty area\n"];

RETURN

};

TRUSTED {Process.SetPriority[Process.priorityBackground]};

IF paged THEN strips ← 1

ELSE {

strips ← TerminalIO.RequestInt["How many vertical strips? [1..10] "];

strips ← MAX[1, MIN[10, strips]];

};

BEGIN

ENABLE { -- for ERRORs

UNWIND => {

s ← AbortFile[s];

CDViewer.RemoveArrow[design];

TerminalIO.WriteRope[" ** plot aborted ** "]

};

dr: CD.DrawRef = CD.CreateDrawRef[design];

scale: REAL ← MIN[

maxPixPerLambda/CD.lambda,

(REAL[scanLineWidth-overLap]*strips+overLap) / plotSize.x

];

--Center the x range of the selected area of the design on the plotter bed, with at most maxPixPerLambda pixels per lambda. If multiple strips are called for, overlap adjacent ones by "overLap" pixels.

-- total number of pixels across plot = REAL[scanLineWidth]+REAL[scanLineWidth-overLap]*(strips-1))

ps ← NEW[PlotState ← [

scale: scale,

totalPlotClip: plotClip,

colorLoads: NEW[ColorDescription ← ALL[NIL]]

]];

IF paged THEN {

scale ← MIN[scale, REAL[pageSlowSize]/plotSize.x];

};

imageFSize ← scanLineWidth;

imageSSize ← plotSize.y*scale; -- length of plot <in slow direction> in pixels

plotScale ← scale;

IF debugging THEN {

TerminalIO.WriteRope[" Scale factor (pixels/design#)*100 --> "];

TerminalIO.WriteInt[Real.RoundLI[plotScale*100]];

TerminalIO.WriteLn[];

};

dr.minimalSize ← 0;

dr.stopFlag ← abortPlot;

dr.drawRect ← dr.saveRect ← NoteRectangle;

dr.drawContext ← DrawContext;

dr.contextFilter ← contextFilter;

dr.devicePrivate ← ps;

FOR strip: INT IN [0..strips) DO

-- Determine clip rectangle for strip

clip: CD.DesignRect = [

x1: plotClip.x1+strip*(plotSize.x/strips),

y1: plotClip.y1,

x2: plotClip.x1+(strip+1)*(plotSize.x/strips)+

Real.Fix[overLap/scale]+1,

y2: plotClip.y2

];

localFileName: Rope.ROPE = CDIO.MakeName[

wDir: "///temp/",

base: "plot",

modifier: IO.PutFR["%d", IO.int[strip+1]],

ext: "pd"

];

TerminalIO.WriteRope["Recording strip on file "];

TerminalIO.WriteRope[localFileName];

TerminalIO.WriteLn[];

ps.pdState ← PDFileWriter.Create[

fileName: localFileName,

deviceCode: deviceCode,

sResolution: sRes,

fResolution: fRes,

imageSSize: (IF paged THEN pageSlowSize ELSE Real.RoundC[imageSSize + 1]),

imageFSize: imageFSize,

bandSSize: bandSSize,

leftOverMode: leftOverMode

];

ps.colorLoads^ ← ALL[NIL];

PDFileWriter.StartImage[pdState: ps.pdState, toners: toners];

-- For each band in the strip

FOR topLine: INT ← 0, topLine+bandSSize WHILE topLine<imageSSize DO

x1, y1, x2, y2: REAL;

dc: CD.DesignRect;

IF abortPlot^ THEN GOTO AbortPlot;

-- Determine coordinate transformations

pdx ← 0;

pdy ← topLine;

cdx ← clip.x1;

cdy ← clip.y2 - Real.Fix[topLine*(1./scale)];

xoffset ← pdx - Real.Fix[cdx*scale];

yoffset ← pdy - Real.Fix[-cdy*scale];

-- (negative scale to account for CD increasing y north, PD increasing y going south)

x1 ← (-1-xoffset) / scale;

y1 ← -(pdy+bandSSize+1-yoffset) / scale;

x2 ← (scanLineWidth-xoffset) / scale;

y2 ← -(pdy-yoffset) / scale;

dc ← CDBasics.NormalizeRect[[x1: Real.Fix[x1], y1: Real.Fix[y1], x2: Real.Fix[x2], y2: Real.Fix[y2]]] ;

ps.bandClip ← dr.interestClip ← [

x1: MAX[plotClip.x1, dc.x1-1],

y1: MAX[plotClip.y1, dc.y1-1],

x2: MIN[plotClip.x2, dc.x2+1],

y2: MIN[plotClip.y2, dc.y2+1]

];

-- rectangle in design space that ChipNDale can use to clip its recursive drawing

IF debugging THEN {

TerminalIO.WriteRope["\n pdy: "];

TerminalIO.WriteInt[pdy];

TerminalIO.WriteRope["\n CD band: "];

TerminalIO.WriteInt[ps.bandClip.x1];

TerminalIO.WriteInt[ps.bandClip.y1];

TerminalIO.WriteInt[ps.bandClip.x2];

TerminalIO.WriteInt[ps.bandClip.y2];

TerminalIO.WriteLn[]

};

--Display current band under consideration to pacify user

CDViewer.ShowArrow[design: design, pos: [

x: (dr.interestClip.x1+dr.interestClip.x2)/2,

y: (dr.interestClip.y1+dr.interestClip.y2)/2]

];

-- clear previous tessalations

ps.anouncedLayer ← -1;

FOR l: CD.Layer IN CD.Layer DO

IF ps.tes[l]#NIL THEN

CornerStitching.ChangeRect[plane: ps.tes[l], rect: CDBasics.universe, newValue: NIL];

ENDLOOP;

CDOps.DrawDesign[design, dr]; -- build tesselations of the relevant design rectangle

AnalyzeTesselations[ps]; --will actually draw

TerminalIO.WriteRope["."];

ENDLOOP; -- for each band in the strip

PDFileWriter.EndPage[ps.pdState];

PDFileWriter.Close[ps.pdState];

TerminalIO.WriteRope["*\n"];

ENDLOOP; -- for each strip

TerminalIO.WriteRope[" finished plot(s)\n"];

CDViewer.RemoveArrow[design: design];

EXITS

AbortPlot => {

s ← AbortFile[s];

CDViewer.RemoveArrow[design];

TerminalIO.WriteRope[" ** plot aborted ** "];

};

END; -- enable

END; -- PlotDesign

NoteRectangle: PROC [r: CD.DesignRect, l: CD.Layer, pr: CD.DrawRef] =

BEGIN

ps: PlotStateRef = NARROW[pr.devicePrivate];

IF CDBasics.NonEmpty[r] THEN {

IF ps.tes[l]=NIL THEN ps.tes[l] ← CornerStitching.NewTesselation[];

ps.tes[l].ChangeRect[rect: r, newValue: $covered];

};

END;

SetColor: PROC [ps: PlotStateRef, lev: CD.Layer] =

BEGIN

Stipple16: TYPE = ARRAY[0..16) OF CARDINAL;

Stipple8: TYPE = ARRAY[0..8) OF [0..256);

Stipple4: TYPE = ARRAY[0..4) OF [0..16);

ToTexture: PROC [pattern: REF ANY] RETURNS [texture: Stipple16] =

--tries to convert pattern to a texture stipple

BEGIN

IF pattern=NIL THEN RETURN[Stipple16[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]; -- should not occur

WITH pattern SELECT FROM

s16: REF Stipple16 => texture ← s16^;

s8: REF Stipple8 =>

FOR i: [0..8) IN [0..8) DO

texture[i] ← texture[i+8] ← (256+1)*s8[i];

ENDLOOP;

s4: REF Stipple4 =>

FOR i: [0..4) IN [0..4) DO

texture[i] ← texture[i+4] ← texture[i+8] ← texture[i+12] ← s4[i]*1111H;

ENDLOOP;

ENDCASE => RETURN[Stipple16[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0FFFFH]]; -- error texture

RETURN [texture]

END; -- ToTexture

MakeLoadref: PROC [pattern: REF ANY] RETURNS [loadRef: PDFileWriter.LoadReference] =

TRUSTED BEGIN

texture: Stipple16 ← ToTexture[pattern];

loadRef ← PDFileWriter.LoadContiguousColorTile[pdState: ps.pdState, phase: 0, sMin: 0, fMin: 0, sSize: 16, fSize: 16, bitsPtr: @texture];

END; -- MakeLoadref

MakeLoad: PROC [ps: PlotStateRef, lev: CD.Layer] =

--makes the load if it does not already exist

BEGIN

IF ps.colorLoads^[lev]=NIL THEN {

ps.colorLoads^[lev] ← NEW[LoadArray];

FOR toner: Toner IN Toner DO

tex: REF ← CDProperties.GetPropFromLayer[from: lev, prop: tonerToKey[toner]];

IF tex=NIL THEN ps.colorLoads^[lev][toner] ← whiteLoadRef

ELSE ps.colorLoads^[lev][toner] ← MakeLoadref[tex]

ENDLOOP;

};

END; --MakeLoad

--SetColor

IF ps.anouncedLayer=lev THEN RETURN;

IF ps.colorLoads^[lev]=NIL THEN MakeLoad[ps, lev];

FOR toner: Toner IN Toner DO

IF ps.colorLoads^[lev][toner] = whiteLoadRef THEN

PDFileWriter.SetColorOff[ps.pdState, toner]

ELSE

PDFileWriter.SetColorTile[ps.pdState, toner, ps.colorLoads^[lev][toner], transparent];

ENDLOOP;

ps.anouncedLayer ← lev

END;

contextFilter: REF CD.ContextFilter = NEW[CD.ContextFilter←ALL[[doit: TRUE]]];

PlotPolygon: PROC [ob: CD.ObPtr, pos: CD.DesignPosition, orient: CD.Orientation] =

BEGIN

OutputTrapezoid: PROCEDURE [xbotL: REAL, xbotR: REAL, ybot: REAL, xtopL: REAL, xtopR: REAL, ytop: REAL] =

--lower left x, lower right x, lower y, upper left x, upper right x, upper y

BEGIN

--global variables ps, xoffset, yoffset, plotScale, imageFSize, imageSSize, pdy

--x-Fast

--y-Slow

PDFileWriter.MaskTrapezoid[

pdState: ps.pdState,

sMin: Real.RoundC[ybot],

sSize: Real.RoundC[ytop-ybot],

fMin: Real.RoundC[xbotL],

fSize: Real.RoundC[xbotR-xbotL],

fMinLast: Real.RoundC[xtopL],

fSizeLast: Real.RoundC[xtopR-xtopL]

];

END; --OutputTrapezoid

--PlotPolygon

pp: CDPolygons.PolygonPtr = NARROW[ob.specificRef];

polygon: CGReducer.Ref = CGReducer.New[size: 8];

tiling: CGArea.Ref = CGArea.New[size: 4];

clipRef: CGClipper.Ref = CGClipper.New[size: 4];

clip: GraphicsBasic.Box ← [

xmin: 0,

ymin: pdy,

xmax: MIN[xoffset + ps.bandClip.x2*plotScale, imageFSize],

ymax: pdy+bandSSize

];

CGClipper.SetBox[self: clipRef, box: clip];

CGClipper.Load[self: clipRef, reducer: polygon];

FOR p: LIST OF CD.DesignPosition ← pp.points, p.rest WHILE p#NIL DO

at: CD.DesignPosition = CDOrient.MapPoint[

pointInCell: p.first,

cellSize: ob.size,

cellInstOrient: orient,

cellInstPos: pos

];

CGReducer.Vertex[self: polygon, v: [

x: xoffset + at.x*plotScale,

y: yoffset - at.y*plotScale

]]

ENDLOOP;

CGReducer.Close[polygon];

CGReducer.Generate[self: polygon, area: tiling];

UNTIL CGArea.Empty[tiling] DO

t: GraphicsBasic.Trap = CGArea.Remove[tiling];

OutputTrapezoid[t.xbotL, t.xbotR, t.ybot, t.xtopL, t.xtopR, t.ytop];

ENDLOOP;

END; --PlotPolygon

DrawContext: PROC [pr: CD.DrawRef, proc: CD.DrawContextLayerProc, ob: CD.ObPtr, pos: CD.DesignPosition, orient: CD.Orientation, layer: CD.Layer] =

BEGIN

IF CDPolygons.IsPolygon[ob] THEN {

SetColor[ps, layer];

PlotPolygon[ob, pos, orient];

}

END;

AnalyzeTesselations: PROC [ps: PlotStateRef] =

BEGIN

FOR lev: CD.Layer IN CD.Layer DO

IF ps.tes[lev]#NIL THEN {

SetColor[ps, lev];

[] ← ps.tes[lev].EnumerateArea[

rect: ps.bandClip,

perTile: ProcessTile,

data: ps,

backgroundValue: $none

];

};

ENDLOOP;

END;

ProcessTile: PROCEDURE [tile: CornerStitching.TilePtr, data: REF ANY] =

CornerStitching.PerTileProc

BEGIN

IF tile.Value = $covered THEN {

rightBound, x1, y1, x2, y2: INT;

pdx1, pdx2, pdy1, pdy2: CARDINAL;

sSize, fSize: CARDINAL;

ps: PlotStateRef = NARROW[data];

r: CD.DesignRect = tile.Area;

-- Calculate absolute coords of rectangle here as offset from plot origin

x1 ← Real.RoundLI[xoffset + r.x1*plotScale];

y1 ← Real.RoundLI[yoffset - r.y1*plotScale];

x2 ← Real.RoundLI[xoffset + r.x2*plotScale];

y2 ← Real.RoundLI[yoffset - r.y2*plotScale];

rightBound ← Real.RoundLI[xoffset + ps.bandClip.x2*plotScale];

-- if rectangle is in band area, clip and write; otherwise disregard rectangle

IF NOT (

x1>rightBound OR

x2<0 OR

y1<pdy OR

y2>MIN[imageSSize, pdy+bandSSize]

) THEN {

pdx1 ← MAX[x1, 0];

pdx2 ← MIN[x2, rightBound, imageFSize];

pdy1 ← MIN[y1, pdy+bandSSize];

pdy2 ← MAX[y2, pdy];

fSize ← pdx2 - pdx1;

sSize ← pdy1 - pdy2;

-- clip on imageSSize

IF pdy1>=imageSSize THEN sSize ← Real.Fix[imageSSize - pdy2];

IF sSize#0 AND fSize#0 THEN

PDFileWriter.MaskRectangle[pdState: ps.pdState,

sMin: pdy2, fMin: pdx1, sSize: sSize, fSize: fSize

];

}

};

END;

AbortFile: PROC [s: IO.STREAM] RETURNS [IO.STREAM] = {

IF s#NIL THEN s.Close[abort: TRUE];

RETURN[NIL]

};

PDColorPlotComm: PROC [comm: CDSequencer.Command] =

BEGIN

TerminalIO.WriteRope["Color plot\n"];

[] ← CDCommandOps.CallWithResource[ProtectedPlotDesign, comm, $ColorPlot, abortPlot];

END;

Init: PROC ~ {

CDSequencer.ImplementCommand[a: $VersatecColorPlot, p: PDColorPlotComm, queue: doQueue];

CDSequencer.ImplementCommand[a: $InkJetColorPlot, p: PDColorPlotComm, queue: doQueue];

CDSequencer.ImplementCommand[a: $PuffinColorPlot, p: PDColorPlotComm, queue: doQueue];

CDMenus.CreateEntry[$HardCopyMenu, "Color Versatec", $VersatecColorPlot];

CDMenus.CreateEntry[$HardCopyMenu, "Ink Jet", $InkJetColorPlot];

CDMenus.CreateEntry[$HardCopyMenu, "Puffin, (1 page)", $PuffinColorPlot];

TerminalIO.WriteRope["ChipNDale color plot program loaded\n"];

};

Init[];

END.