DIRECTORYScaled USING [Value];newImagerBasic: CEDAR DEFINITIONS= BEGINPair: TYPE = RECORD [x, y: REAL];IntPair: TYPE = RECORD [x, y: INTEGER];Edge: TYPE = RECORD [a, b: Pair];IntEdge: TYPE = RECORD [a, b: IntPair];Rectangle: TYPE = RECORD [x, y, w, h: REAL];IntRectangle: TYPE = RECORD [x, y, w, h: INTEGER];nullBox: IntRectangle = [FIRST[INTEGER], FIRST[INTEGER], FIRST[INTEGER], FIRST[INTEGER]];Bezier: TYPE = RECORD [b0, b1, b2, b3: Pair]; -- Bezier control points for a cubic curveTransformType: TYPE = {none, identity, rot90, rot180, rot270, mirrorX, mirrorY, mirror45Deg, mirror135Deg, hard};Transformation: TYPE = RECORD [ -- a transformation matrixa, b, c, d, e, f: REAL, -- matrix elementstype: TransformType -- identifies special matrix forms];Visibility: TYPE = {visible, partlyVisible, invisible};PathMapType: TYPE = PROC[data: REF,move: PROC[p: Pair],line: PROC[p: Pair],curve: PROC[p1, p2, p3: Pair],conic: PROC[p1, p2: Pair, r: REAL]];PathClosure: TYPE = RECORD[map: PathMapType, data: REF];StrokeEnds: TYPE = {butt, square, round};Color: TYPE = REF;CIEColor: TYPE = REF CIEColorRep;CIEColorRep: TYPE = RECORD [x, y, Y: CARDINAL];SampledColor: TYPE = REF SampledColorRep;SampledColorRep: TYPE = RECORD [transparent: BOOLEAN, -- are 0 samples white (false) or transparent (true)?pa: PixelArray, -- the array of samplesm: Transformation, -- transforms from pa to device coordinatescolorMap: ATOM -- maps samples into colors];PixelArray: TYPE = REF PixelArrayRep;PixelArrayRep: TYPE = RECORD [xPixels, yPixels: INT, -- dimensions of the array, in pixelsmaxSampleValue: INT, -- the range of sample values is [0..maxSampleValue]samplesPerPixel: INT, -- number of samples for each pixelm: Transformation, -- transformation to client space (see Interpress, section 4.6)get: PROC [self: PixelArray,buffer: PixelBuffer,nSamples: NAT,layer: INT,xStart, yStart: Scaled.Value,xDelta, yDelta: Scaled.Value],data: REF ANY];PixelBuffer: TYPE = REF PixelBufferRep;PixelBufferRep: TYPE = RECORD [SEQUENCE maxLength: NAT OF CARDINAL];END.  Ў  newImagerBasic.mesaThis interface provides the public data structures shared by clients and the Imager.Last Edited by:Crow, Plass, Wyatt, July 6, 1983 2:38 pmWyatt, September 21, 1983 10:10 amBasic Definitions (Numbers and Shapes)TransformationsThe form of the complete transformation matrix is:a	d	0b	e	0c	f	1ClippingPathsMasksColorsCIE Chromaticity coordinatesPixelArraysobject implementation fills this with the requested number of samples.number of samples to put in buffer.in the range [0..samplesPerPixel)position of first sample.increment to get to successive samples.for use by the get proc; some devices may discriminate on this REF to get at the representation directly, if they are able to recognize it.Э╩▄  Ш ЪЬЩJЩ ЧJЩTJЩ ЪЬЩJЪЬ(Щ(JЩ"ЧJШ Ъ╧k	Ш	JЪЬЭЬ	ШЧJШ JЪЬЭЬЭШ!JЪЬЭШJЩ ЪЬ&Щ&JЩ JЪЬЭЬЭЬЭЬШ!JЪЬ	ЭЬЭЬЭЬШ'JЪЬЭЬЭЬШ!JЪЬ	ЭЬЭЬШ'JЪЬЭЬЭЬЭЬШ,JЪЬЭЬЭЬЭЬШ2JЪЬЭЬЭЬЭЬЭЬЭЬЭЬЭЬЭЬШYJЪЬЭЬЭЬ╧c*ШXЧJЩ ЪЬЩJЩ JЪЬЭЬ^ШqJШ ЪЬЭЬЭЬЮШ:JЪЬЭЬЮШ*JЪЬЮ"Ш6JЪЬШЩ2JЪЬЩJЪЬЩJЪЬЩЧЧЧJЩ ЪЬЩJЩ JЪЬЭЬ'Ш7ЧJЩ ЩJЩ ЪЬЭЬЭЬШJЪЬЭЬШ
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