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Diffstat (limited to 'generic/tkbltGrElemLine.h')
| -rw-r--r-- | generic/tkbltGrElemLine.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/generic/tkbltGrElemLine.h b/generic/tkbltGrElemLine.h new file mode 100644 index 0000000..f937615 --- /dev/null +++ b/generic/tkbltGrElemLine.h @@ -0,0 +1,184 @@ +/* + * Smithsonian Astrophysical Observatory, Cambridge, MA, USA + * This code has been modified under the terms listed below and is made + * available under the same terms. + */ + +/* + * Copyright 1993-2004 George A Howlett. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef __BltGrElemLine_h__ +#define __BltGrElemLine_h__ + +#include <tk.h> + +#include "tkbltGraph.h" +#include "tkbltGrElem.h" +#include "tkbltGrPenLine.h" + +namespace Blt { + + typedef struct { + Point2d *screenPts; + int nScreenPts; + int *styleMap; + int *map; + } MapInfo; + + typedef struct { + Point2d *points; + int length; + int *map; + } GraphPoints; + + typedef struct { + int start; + GraphPoints screenPts; + } bltTrace; + + typedef struct { + Weight weight; + LinePen* penPtr; + GraphPoints symbolPts; + GraphSegments xeb; + GraphSegments yeb; + int symbolSize; + int errorBarCapWidth; + } LineStyle; + + typedef struct { + Element* elemPtr; + const char* label; + char** tags; + Axis* xAxis; + Axis* yAxis; + ElemCoords coords; + ElemValues* w; + ElemValues* xError; + ElemValues* yError; + ElemValues* xHigh; + ElemValues* xLow; + ElemValues* yHigh; + ElemValues* yLow; + int hide; + int legendRelief; + Chain* stylePalette; + LinePen *builtinPenPtr; + LinePen *activePenPtr; + LinePen *normalPenPtr; + LinePenOptions builtinPen; + + // derived + Tk_3DBorder fillBg; + int reqMaxSymbols; + double rTolerance; + int scaleSymbols; + int reqSmooth; + int penDir; + } LineElementOptions; + + class LineElement : public Element { + public: + enum PenDirection {INCREASING, DECREASING, BOTH_DIRECTIONS}; + enum Smoothing {LINEAR, STEP, CUBIC, QUADRATIC, CATROM}; + + protected: + LinePen* builtinPenPtr; + Smoothing smooth_; + Point2d *fillPts_; + int nFillPts_; + GraphPoints symbolPts_; + GraphPoints activePts_; + GraphSegments xeb_; + GraphSegments yeb_; + int symbolInterval_; + int symbolCounter_; + Chain* traces_; + + void drawCircle(Display*, Drawable, LinePen*, int, Point2d*, int); + void drawSquare(Display*, Drawable, LinePen*, int, Point2d*, int); + void drawSCross(Display*, Drawable, LinePen*, int, Point2d*, int); + void drawCross(Display*, Drawable, LinePen*, int, Point2d*, int); + void drawDiamond(Display*, Drawable, LinePen*, int, Point2d*, int); + void drawArrow(Display*, Drawable, LinePen*, int, Point2d*, int); + + protected: + int scaleSymbol(int); + void getScreenPoints(MapInfo*); + void reducePoints(MapInfo*, double); + void generateSteps(MapInfo*); + void generateSpline(MapInfo*); + void generateParametricSpline(MapInfo*); + void mapSymbols(MapInfo*); + void mapActiveSymbols(); + void mergePens(LineStyle**); + int outCode(Region2d*, Point2d*); + int clipSegment(Region2d*, int, int, Point2d*, Point2d*); + void saveTrace(int, int, MapInfo*); + void freeTraces(); + void mapTraces(MapInfo*); + void mapFillArea(MapInfo*); + void mapErrorBars(LineStyle**); + void reset(); + int closestTrace(); + void closestPoint(ClosestSearch*); + void drawSymbols(Drawable, LinePen*, int, int, Point2d*); + void drawTraces(Drawable, LinePen*); + void drawValues(Drawable, LinePen*, int, Point2d*, int*); + void setLineAttributes(PSOutput*, LinePen*); + void printTraces(PSOutput*, LinePen*); + void printValues(PSOutput*, LinePen*, int, Point2d*, int*); + void printSymbols(PSOutput*, LinePen*, int, int, Point2d*); + double distanceToLine(int, int, Point2d*, Point2d*, Point2d*); + double distanceToX(int, int, Point2d*, Point2d*, Point2d*); + double distanceToY(int, int, Point2d*, Point2d*, Point2d*); + int simplify(Point2d*, int, int, double, int*); + double findSplit(Point2d*, int, int, int*); + + int naturalSpline(Point2d*, int, Point2d*, int); + int quadraticSpline(Point2d*, int, Point2d*, int); + int naturalParametricSpline(Point2d*, int, Region2d*, int, Point2d*, int); + int catromParametricSpline(Point2d*, int, Point2d*, int); + + public: + LineElement(Graph*, const char*, Tcl_HashEntry*); + virtual ~LineElement(); + + ClassId classId() {return CID_ELEM_LINE;} + const char* className() {return "LineElement";} + const char* typeName() {return "line";} + + int configure(); + void map(); + void extents(Region2d*); + void closest(); + void draw(Drawable); + void drawActive(Drawable); + void drawSymbol(Drawable, int, int, int); + void print(PSOutput*); + void printActive(PSOutput*); + void printSymbol(PSOutput*, double, double, int); + }; +}; + +#endif |