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pbPlots.cpp
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pbPlots.cpp
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// Downloaded from https://repo.progsbase.com - Code Developed Using progsbase.
#include "pbPlots.hpp"
using namespace std;
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
// -----------------
#include <typeinfo>
enum Type { type_boolean, type_character, type_number, type_reference };
typedef struct Memory{
void *mem;
int64_t size;
bool isArray;
int type;
struct Memory *next;
} Memory;
Memory *memoryStart = NULL;
Memory *memory = NULL;
void FreeAllocations(){
Memory *cur, *prev;
int64_t total;
total = 0;
cur = memoryStart;
while(cur != NULL){
if(cur->isArray){
if(cur->type == type_boolean){
vector<bool> *x = (vector<bool> *)cur->mem;
delete x;
}else if(cur->type == type_character){
vector<wchar_t> *x = (vector<wchar_t> *)cur->mem;
delete x;
}else if(cur->type == type_number){
vector<double> *x = (vector<double> *)cur->mem;
delete x;
}else{
vector<void*> *x = (vector<void*> *)cur->mem;
delete x;
}
}else{
free(cur->mem);
}
total += cur->size;
prev = cur;
cur = cur->next;
delete prev;
}
memoryStart = NULL;
memory = NULL;
//printf("Freed %ld\n", total);
}
void FreeArenaMemory(void *addr){
}
template<typename T>
T *Allocate(){
T *addr;
if(memoryStart == NULL){
memoryStart = new Memory;
memory = memoryStart;
}else{
memory->next = new Memory;
memory = memory->next;
}
memory->next = NULL;
addr = (T*)malloc(sizeof(T));
memory->size = sizeof(T);
memory->mem = (void*)addr;
memory->isArray = false;
return addr;
}
template<typename T>
std::vector<T> *Allocate(size_t length){
std::vector<T> *addr;
if(memoryStart == NULL){
memoryStart = new Memory;
memory = memoryStart;
}else{
memory->next = new Memory;
memory = memory->next;
}
memory->next = NULL;
addr = new std::vector<T>(length);
memory->size = length * sizeof(T);
memory->mem = (void*)addr;
memory->isArray = true;
if(typeid(T) == typeid(bool)){
memory->type = type_boolean;
}else if(typeid(T) == typeid(wchar_t)){
memory->type = type_character;
}else if(typeid(T) == typeid(double)){
memory->type = type_number;
}else{
memory->type = type_reference;
}
return addr;
}
template<typename T>
void Free(T *t){
FreeArenaMemory(t);
}
// -----------------
vector<wchar_t> *toVector(const wchar_t *str){
vector<wchar_t> *v;
size_t len;
len = wcslen(str);
v = Allocate<wchar_t>(len);
for(int i = 0; i < len ; i++){
v->at(i) = str[i];
}
return v;
}
bool CropLineWithinBoundary(NumberReference *x1Ref, NumberReference *y1Ref, NumberReference *x2Ref, NumberReference *y2Ref, double xMin, double xMax, double yMin, double yMax){
double x1, y1, x2, y2;
bool success, p1In, p2In;
double dx, dy, f1, f2, f3, f4, f;
x1 = x1Ref->numberValue;
y1 = y1Ref->numberValue;
x2 = x2Ref->numberValue;
y2 = y2Ref->numberValue;
p1In = x1 >= xMin && x1 <= xMax && y1 >= yMin && y1 <= yMax;
p2In = x2 >= xMin && x2 <= xMax && y2 >= yMin && y2 <= yMax;
if(p1In && p2In){
success = true;
}else if( !p1In && p2In){
dx = x1 - x2;
dy = y1 - y2;
if(dx != 0.0){
f1 = (xMin - x2)/dx;
f2 = (xMax - x2)/dx;
}else{
f1 = 1.0;
f2 = 1.0;
}
if(dy != 0.0){
f3 = (yMin - y2)/dy;
f4 = (yMax - y2)/dy;
}else{
f3 = 1.0;
f4 = 1.0;
}
if(f1 < 0.0){
f1 = 1.0;
}
if(f2 < 0.0){
f2 = 1.0;
}
if(f3 < 0.0){
f3 = 1.0;
}
if(f4 < 0.0){
f4 = 1.0;
}
f = fmin(f1, fmin(f2, fmin(f3, f4)));
x1 = x2 + f*dx;
y1 = y2 + f*dy;
success = true;
}else if(p1In && !p2In ){
dx = x2 - x1;
dy = y2 - y1;
if(dx != 0.0){
f1 = (xMin - x1)/dx;
f2 = (xMax - x1)/dx;
}else{
f1 = 1.0;
f2 = 1.0;
}
if(dy != 0.0){
f3 = (yMin - y1)/dy;
f4 = (yMax - y1)/dy;
}else{
f3 = 1.0;
f4 = 1.0;
}
if(f1 < 0.0){
f1 = 1.0;
}
if(f2 < 0.0){
f2 = 1.0;
}
if(f3 < 0.0){
f3 = 1.0;
}
if(f4 < 0.0){
f4 = 1.0;
}
f = fmin(f1, fmin(f2, fmin(f3, f4)));
x2 = x1 + f*dx;
y2 = y1 + f*dy;
success = true;
}else{
success = false;
}
x1Ref->numberValue = x1;
y1Ref->numberValue = y1;
x2Ref->numberValue = x2;
y2Ref->numberValue = y2;
return success;
}
double IncrementFromCoordinates(double x1, double y1, double x2, double y2){
return (x2 - x1)/(y2 - y1);
}
double InterceptFromCoordinates(double x1, double y1, double x2, double y2){
double a, b;
a = IncrementFromCoordinates(x1, y1, x2, y2);
b = y1 - a*x1;
return b;
}
vector<RGBA*> *Get8HighContrastColors(){
vector<RGBA*> *colors;
colors = Allocate<RGBA*>(8.0);
colors->at(0) = CreateRGBColor(3.0/256.0, 146.0/256.0, 206.0/256.0);
colors->at(1) = CreateRGBColor(253.0/256.0, 83.0/256.0, 8.0/256.0);
colors->at(2) = CreateRGBColor(102.0/256.0, 176.0/256.0, 50.0/256.0);
colors->at(3) = CreateRGBColor(208.0/256.0, 234.0/256.0, 43.0/256.0);
colors->at(4) = CreateRGBColor(167.0/256.0, 25.0/256.0, 75.0/256.0);
colors->at(5) = CreateRGBColor(254.0/256.0, 254.0/256.0, 51.0/256.0);
colors->at(6) = CreateRGBColor(134.0/256.0, 1.0/256.0, 175.0/256.0);
colors->at(7) = CreateRGBColor(251.0/256.0, 153.0/256.0, 2.0/256.0);
return colors;
}
void DrawFilledRectangleWithBorder(RGBABitmapImage *image, double x, double y, double w, double h, RGBA *borderColor, RGBA *fillColor){
if(h > 0.0 && w > 0.0){
DrawFilledRectangle(image, x, y, w, h, fillColor);
DrawRectangle1px(image, x, y, w, h, borderColor);
}
}
RGBABitmapImageReference *CreateRGBABitmapImageReference(){
RGBABitmapImageReference *reference;
reference = Allocate<RGBABitmapImageReference>();
reference->image = Allocate<RGBABitmapImage>();
reference->image->x = Allocate<RGBABitmap*>(0.0);
return reference;
}
bool RectanglesOverlap(Rectangle *r1, Rectangle *r2){
bool overlap;
overlap = false;
overlap = overlap || (r2->x1 >= r1->x1 && r2->x1 <= r1->x2 && r2->y1 >= r1->y1 && r2->y1 <= r1->y2);
overlap = overlap || (r2->x2 >= r1->x1 && r2->x2 <= r1->x2 && r2->y1 >= r1->y1 && r2->y1 <= r1->y2);
overlap = overlap || (r2->x1 >= r1->x1 && r2->x1 <= r1->x2 && r2->y2 >= r1->y1 && r2->y2 <= r1->y2);
overlap = overlap || (r2->x2 >= r1->x1 && r2->x2 <= r1->x2 && r2->y2 >= r1->y1 && r2->y2 <= r1->y2);
return overlap;
}
Rectangle *CreateRectangle(double x1, double y1, double x2, double y2){
Rectangle *r;
r = Allocate<Rectangle>();
r->x1 = x1;
r->y1 = y1;
r->x2 = x2;
r->y2 = y2;
return r;
}
void CopyRectangleValues(Rectangle *rd, Rectangle *rs){
rd->x1 = rs->x1;
rd->y1 = rs->y1;
rd->x2 = rs->x2;
rd->y2 = rs->y2;
}
void DrawXLabelsForPriority(double p, double xMin, double oy, double xMax, double xPixelMin, double xPixelMax, NumberReference *nextRectangle, RGBA *gridLabelColor, RGBABitmapImage *canvas, vector<double> *xGridPositions, StringArrayReference *xLabels, NumberArrayReference *xLabelPriorities, vector<Rectangle*> *occupied, bool textOnBottom){
bool overlap, currentOverlaps;
double i, j, x, px, padding;
vector<wchar_t> *text;
Rectangle *r;
r = Allocate<Rectangle>();
padding = 10.0;
overlap = false;
for(i = 0.0; i < xLabels->stringArray->size(); i = i + 1.0){
if(xLabelPriorities->numberArray->at(i) == p){
x = xGridPositions->at(i);
px = MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax);
text = xLabels->stringArray->at(i)->string;
r->x1 = floor(px - GetTextWidth(text)/2.0);
if(textOnBottom){
r->y1 = floor(oy + 5.0);
}else{
r->y1 = floor(oy - 20.0);
}
r->x2 = r->x1 + GetTextWidth(text);
r->y2 = r->y1 + GetTextHeight(text);
/* Add padding */
r->x1 = r->x1 - padding;
r->y1 = r->y1 - padding;
r->x2 = r->x2 + padding;
r->y2 = r->y2 + padding;
currentOverlaps = false;
for(j = 0.0; j < nextRectangle->numberValue; j = j + 1.0){
currentOverlaps = currentOverlaps || RectanglesOverlap(r, occupied->at(j));
}
if( !currentOverlaps && p == 1.0){
DrawText(canvas, r->x1 + padding, r->y1 + padding, text, gridLabelColor);
CopyRectangleValues(occupied->at(nextRectangle->numberValue), r);
nextRectangle->numberValue = nextRectangle->numberValue + 1.0;
}
overlap = overlap || currentOverlaps;
}
}
if( !overlap && p != 1.0){
for(i = 0.0; i < xGridPositions->size(); i = i + 1.0){
x = xGridPositions->at(i);
px = MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax);
if(xLabelPriorities->numberArray->at(i) == p){
text = xLabels->stringArray->at(i)->string;
r->x1 = floor(px - GetTextWidth(text)/2.0);
if(textOnBottom){
r->y1 = floor(oy + 5.0);
}else{
r->y1 = floor(oy - 20.0);
}
r->x2 = r->x1 + GetTextWidth(text);
r->y2 = r->y1 + GetTextHeight(text);
DrawText(canvas, r->x1, r->y1, text, gridLabelColor);
CopyRectangleValues(occupied->at(nextRectangle->numberValue), r);
nextRectangle->numberValue = nextRectangle->numberValue + 1.0;
}
}
}
}
void DrawYLabelsForPriority(double p, double yMin, double ox, double yMax, double yPixelMin, double yPixelMax, NumberReference *nextRectangle, RGBA *gridLabelColor, RGBABitmapImage *canvas, vector<double> *yGridPositions, StringArrayReference *yLabels, NumberArrayReference *yLabelPriorities, vector<Rectangle*> *occupied, bool textOnLeft){
bool overlap, currentOverlaps;
double i, j, y, py, padding;
vector<wchar_t> *text;
Rectangle *r;
r = Allocate<Rectangle>();
padding = 10.0;
overlap = false;
for(i = 0.0; i < yLabels->stringArray->size(); i = i + 1.0){
if(yLabelPriorities->numberArray->at(i) == p){
y = yGridPositions->at(i);
py = MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax);
text = yLabels->stringArray->at(i)->string;
if(textOnLeft){
r->x1 = floor(ox - GetTextWidth(text) - 10.0);
}else{
r->x1 = floor(ox + 10.0);
}
r->y1 = floor(py - 6.0);
r->x2 = r->x1 + GetTextWidth(text);
r->y2 = r->y1 + GetTextHeight(text);
/* Add padding */
r->x1 = r->x1 - padding;
r->y1 = r->y1 - padding;
r->x2 = r->x2 + padding;
r->y2 = r->y2 + padding;
currentOverlaps = false;
for(j = 0.0; j < nextRectangle->numberValue; j = j + 1.0){
currentOverlaps = currentOverlaps || RectanglesOverlap(r, occupied->at(j));
}
/* Draw labels with priority 1 if they do not overlap anything else. */
if( !currentOverlaps && p == 1.0){
DrawText(canvas, r->x1 + padding, r->y1 + padding, text, gridLabelColor);
CopyRectangleValues(occupied->at(nextRectangle->numberValue), r);
nextRectangle->numberValue = nextRectangle->numberValue + 1.0;
}
overlap = overlap || currentOverlaps;
}
}
if( !overlap && p != 1.0){
for(i = 0.0; i < yGridPositions->size(); i = i + 1.0){
y = yGridPositions->at(i);
py = MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax);
if(yLabelPriorities->numberArray->at(i) == p){
text = yLabels->stringArray->at(i)->string;
if(textOnLeft){
r->x1 = floor(ox - GetTextWidth(text) - 10.0);
}else{
r->x1 = floor(ox + 10.0);
}
r->y1 = floor(py - 6.0);
r->x2 = r->x1 + GetTextWidth(text);
r->y2 = r->y1 + GetTextHeight(text);
DrawText(canvas, r->x1, r->y1, text, gridLabelColor);
CopyRectangleValues(occupied->at(nextRectangle->numberValue), r);
nextRectangle->numberValue = nextRectangle->numberValue + 1.0;
}
}
}
}
vector<double> *ComputeGridLinePositions(double cMin, double cMax, StringArrayReference *labels, NumberArrayReference *priorities){
vector<double> *positions;
double cLength, p, pMin, pMax, pInterval, pNum, i, num, rem, priority, mode;
cLength = cMax - cMin;
p = floor(log10(cLength));
pInterval = pow(10.0, p);
/* gives 10-1 lines for 100-10 diff */
pMin = ceil(cMin/pInterval)*pInterval;
pMax = floor(cMax/pInterval)*pInterval;
pNum = Round((pMax - pMin)/pInterval + 1.0);
mode = 1.0;
if(pNum <= 3.0){
p = floor(log10(cLength) - 1.0);
/* gives 100-10 lines for 100-10 diff */
pInterval = pow(10.0, p);
pMin = ceil(cMin/pInterval)*pInterval;
pMax = floor(cMax/pInterval)*pInterval;
pNum = Round((pMax - pMin)/pInterval + 1.0);
mode = 4.0;
}else if(pNum <= 6.0){
p = floor(log10(cLength));
pInterval = pow(10.0, p)/4.0;
/* gives 40-5 lines for 100-10 diff */
pMin = ceil(cMin/pInterval)*pInterval;
pMax = floor(cMax/pInterval)*pInterval;
pNum = Round((pMax - pMin)/pInterval + 1.0);
mode = 3.0;
}else if(pNum <= 10.0){
p = floor(log10(cLength));
pInterval = pow(10.0, p)/2.0;
/* gives 20-3 lines for 100-10 diff */
pMin = ceil(cMin/pInterval)*pInterval;
pMax = floor(cMax/pInterval)*pInterval;
pNum = Round((pMax - pMin)/pInterval + 1.0);
mode = 2.0;
}
positions = Allocate<double>(pNum);
labels->stringArray = Allocate<StringReference*>(pNum);
priorities->numberArray = Allocate<double>(pNum);
for(i = 0.0; i < pNum; i = i + 1.0){
num = pMin + pInterval*i;
positions->at(i) = num;
/* Always print priority 1 labels. Only draw priority 2 if they can all be drawn. Then, only draw priority 3 if they can all be drawn. */
priority = 1.0;
/* Prioritize x.25, x.5 and x.75 lower. */
if(mode == 2.0 || mode == 3.0){
rem = fmod(abs(round(num/pow(10.0, p - 2.0))), 100.0);
priority = 1.0;
if(rem == 50.0){
priority = 2.0;
}else if(rem == 25.0 || rem == 75.0){
priority = 3.0;
}
}
/* Prioritize x.1-x.4 and x.6-x.9 lower */
if(mode == 4.0){
rem = fmod(abs(Round(num/pow(10.0, p))), 10.0);
priority = 1.0;
if(rem == 1.0 || rem == 2.0 || rem == 3.0 || rem == 4.0 || rem == 6.0 || rem == 7.0 || rem == 8.0 || rem == 9.0){
priority = 2.0;
}
}
/* 0 has lowest priority. */
if(EpsilonCompare(num, 0.0, pow(10.0, p - 5.0))){
priority = 3.0;
}
priorities->numberArray->at(i) = priority;
/* The label itself. */
labels->stringArray->at(i) = Allocate<StringReference>();
if(p < 0.0){
if(mode == 2.0 || mode == 3.0){
num = RoundToDigits(num, -(p - 1.0));
}else{
num = RoundToDigits(num, -p);
}
}
labels->stringArray->at(i)->string = CreateStringDecimalFromNumber(num);
}
return positions;
}
double MapYCoordinate(double y, double yMin, double yMax, double yPixelMin, double yPixelMax){
double yLength, yPixelLength;
yLength = yMax - yMin;
yPixelLength = yPixelMax - yPixelMin;
y = y - yMin;
y = y*yPixelLength/yLength;
y = yPixelLength - y;
y = y + yPixelMin;
return y;
}
double MapXCoordinate(double x, double xMin, double xMax, double xPixelMin, double xPixelMax){
double xLength, xPixelLength;
xLength = xMax - xMin;
xPixelLength = xPixelMax - xPixelMin;
x = x - xMin;
x = x*xPixelLength/xLength;
x = x + xPixelMin;
return x;
}
double MapXCoordinateAutoSettings(double x, RGBABitmapImage *image, vector<double> *xs){
return MapXCoordinate(x, GetMinimum(xs), GetMaximum(xs), GetDefaultPaddingPercentage()*ImageWidth(image), (1.0 - GetDefaultPaddingPercentage())*ImageWidth(image));
}
double MapYCoordinateAutoSettings(double y, RGBABitmapImage *image, vector<double> *ys){
return MapYCoordinate(y, GetMinimum(ys), GetMaximum(ys), GetDefaultPaddingPercentage()*ImageHeight(image), (1.0 - GetDefaultPaddingPercentage())*ImageHeight(image));
}
double MapXCoordinateBasedOnSettings(double x, ScatterPlotSettings *settings){
double xMin, xMax, xPadding, xPixelMin, xPixelMax;
Rectangle *boundaries;
boundaries = Allocate<Rectangle>();
ComputeBoundariesBasedOnSettings(settings, boundaries);
xMin = boundaries->x1;
xMax = boundaries->x2;
if(settings->autoPadding){
xPadding = floor(GetDefaultPaddingPercentage()*settings->width);
}else{
xPadding = settings->xPadding;
}
xPixelMin = xPadding;
xPixelMax = settings->width - xPadding;
return MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax);
}
double MapYCoordinateBasedOnSettings(double y, ScatterPlotSettings *settings){
double yMin, yMax, yPadding, yPixelMin, yPixelMax;
Rectangle *boundaries;
boundaries = Allocate<Rectangle>();
ComputeBoundariesBasedOnSettings(settings, boundaries);
yMin = boundaries->y1;
yMax = boundaries->y2;
if(settings->autoPadding){
yPadding = floor(GetDefaultPaddingPercentage()*settings->height);
}else{
yPadding = settings->yPadding;
}
yPixelMin = yPadding;
yPixelMax = settings->height - yPadding;
return MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax);
}
double GetDefaultPaddingPercentage(){
return 0.10;
}
void DrawText(RGBABitmapImage *canvas, double x, double y, vector<wchar_t> *text, RGBA *color){
double i, charWidth, spacing;
charWidth = 8.0;
spacing = 2.0;
for(i = 0.0; i < text->size(); i = i + 1.0){
DrawAsciiCharacter(canvas, x + i*(charWidth + spacing), y, text->at(i), color);
}
}
void DrawTextUpwards(RGBABitmapImage *canvas, double x, double y, vector<wchar_t> *text, RGBA *color){
RGBABitmapImage *buffer, *rotated;
buffer = CreateImage(GetTextWidth(text), GetTextHeight(text), GetTransparent());
DrawText(buffer, 0.0, 0.0, text, color);
rotated = RotateAntiClockwise90Degrees(buffer);
DrawImageOnImage(canvas, rotated, x, y);
DeleteImage(buffer);
DeleteImage(rotated);
}
ScatterPlotSettings *GetDefaultScatterPlotSettings(){
ScatterPlotSettings *settings;
settings = Allocate<ScatterPlotSettings>();
settings->autoBoundaries = true;
settings->xMax = 0.0;
settings->xMin = 0.0;
settings->yMax = 0.0;
settings->yMin = 0.0;
settings->autoPadding = true;
settings->xPadding = 0.0;
settings->yPadding = 0.0;
settings->title = toVector(L"");
settings->xLabel = toVector(L"");
settings->yLabel = toVector(L"");
settings->scatterPlotSeries = Allocate<ScatterPlotSeries*>(0.0);
settings->showGrid = true;
settings->gridColor = GetGray(0.1);
settings->xAxisAuto = true;
settings->xAxisTop = false;
settings->xAxisBottom = false;
settings->yAxisAuto = true;
settings->yAxisLeft = false;
settings->yAxisRight = false;
return settings;
}
ScatterPlotSeries *GetDefaultScatterPlotSeriesSettings(){
ScatterPlotSeries *series;
series = Allocate<ScatterPlotSeries>();
series->linearInterpolation = true;
series->pointType = toVector(L"pixels");
series->lineType = toVector(L"solid");
series->lineThickness = 1.0;
series->xs = Allocate<double>(0.0);
series->ys = Allocate<double>(0.0);
series->color = GetBlack();
return series;
}
bool DrawScatterPlot(RGBABitmapImageReference *canvasReference, double width, double height, vector<double> *xs, vector<double> *ys, StringReference *errorMessage){
ScatterPlotSettings *settings;
bool success;
settings = GetDefaultScatterPlotSettings();
settings->width = width;
settings->height = height;
settings->scatterPlotSeries = Allocate<ScatterPlotSeries*>(1.0);
settings->scatterPlotSeries->at(0) = GetDefaultScatterPlotSeriesSettings();
Free(settings->scatterPlotSeries->at(0)->xs);
settings->scatterPlotSeries->at(0)->xs = xs;
Free(settings->scatterPlotSeries->at(0)->ys);
settings->scatterPlotSeries->at(0)->ys = ys;
success = DrawScatterPlotFromSettings(canvasReference, settings, errorMessage);
return success;
}
bool DrawScatterPlotFromSettings(RGBABitmapImageReference *canvasReference, ScatterPlotSettings *settings, StringReference *errorMessage){
double xMin, xMax, yMin, yMax, xLength, yLength, i, x, y, xPrev, yPrev, px, py, pxPrev, pyPrev, originX, originY, p, l, plot;
Rectangle *boundaries;
double xPadding, yPadding, originXPixels, originYPixels;
double xPixelMin, yPixelMin, xPixelMax, yPixelMax, xLengthPixels, yLengthPixels, axisLabelPadding;
NumberReference *nextRectangle, *x1Ref, *y1Ref, *x2Ref, *y2Ref, *patternOffset;
bool prevSet, success;
RGBA *gridLabelColor;
RGBABitmapImage *canvas;
vector<double> *xs, *ys;
bool linearInterpolation;
ScatterPlotSeries *sp;
vector<double> *xGridPositions, *yGridPositions;
StringArrayReference *xLabels, *yLabels;
NumberArrayReference *xLabelPriorities, *yLabelPriorities;
vector<Rectangle*> *occupied;
vector<bool> *linePattern;
bool originXInside, originYInside, textOnLeft, textOnBottom;
double originTextX, originTextY, originTextXPixels, originTextYPixels, side;
canvas = CreateImage(settings->width, settings->height, GetWhite());
patternOffset = CreateNumberReference(0.0);
success = ScatterPlotFromSettingsValid(settings, errorMessage);
if(success){
boundaries = Allocate<Rectangle>();
ComputeBoundariesBasedOnSettings(settings, boundaries);
xMin = boundaries->x1;
yMin = boundaries->y1;
xMax = boundaries->x2;
yMax = boundaries->y2;
/* If zero, set to defaults. */
if(xMin - xMax == 0.0){
xMin = 0.0;
xMax = 10.0;
}
if(yMin - yMax == 0.0){
yMin = 0.0;
yMax = 10.0;
}
xLength = xMax - xMin;
yLength = yMax - yMin;
if(settings->autoPadding){
xPadding = floor(GetDefaultPaddingPercentage()*settings->width);
yPadding = floor(GetDefaultPaddingPercentage()*settings->height);
}else{
xPadding = settings->xPadding;
yPadding = settings->yPadding;
}
/* Draw title */
DrawText(canvas, floor(settings->width/2.0 - GetTextWidth(settings->title)/2.0), floor(yPadding/3.0), settings->title, GetBlack());
/* Draw grid */
xPixelMin = xPadding;
yPixelMin = yPadding;
xPixelMax = settings->width - xPadding;
yPixelMax = settings->height - yPadding;
xLengthPixels = xPixelMax - xPixelMin;
yLengthPixels = yPixelMax - yPixelMin;
DrawRectangle1px(canvas, xPixelMin, yPixelMin, xLengthPixels, yLengthPixels, settings->gridColor);
gridLabelColor = GetGray(0.5);
xLabels = Allocate<StringArrayReference>();
xLabelPriorities = Allocate<NumberArrayReference>();
yLabels = Allocate<StringArrayReference>();
yLabelPriorities = Allocate<NumberArrayReference>();
xGridPositions = ComputeGridLinePositions(xMin, xMax, xLabels, xLabelPriorities);
yGridPositions = ComputeGridLinePositions(yMin, yMax, yLabels, yLabelPriorities);
if(settings->showGrid){
/* X-grid */
for(i = 0.0; i < xGridPositions->size(); i = i + 1.0){
x = xGridPositions->at(i);
px = MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax);
DrawLine1px(canvas, px, yPixelMin, px, yPixelMax, settings->gridColor);
}
/* Y-grid */
for(i = 0.0; i < yGridPositions->size(); i = i + 1.0){
y = yGridPositions->at(i);
py = MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax);
DrawLine1px(canvas, xPixelMin, py, xPixelMax, py, settings->gridColor);
}
}
/* Compute origin information. */
originYInside = yMin < 0.0 && yMax > 0.0;
originY = 0.0;
if(settings->xAxisAuto){
if(originYInside){
originY = 0.0;
}else{
originY = yMin;
}
}else{
if(settings->xAxisTop){
originY = yMax;
}
if(settings->xAxisBottom){
originY = yMin;
}
}
originYPixels = MapYCoordinate(originY, yMin, yMax, yPixelMin, yPixelMax);
originXInside = xMin < 0.0 && xMax > 0.0;
originX = 0.0;
if(settings->yAxisAuto){
if(originXInside){
originX = 0.0;
}else{
originX = xMin;
}
}else{
if(settings->yAxisLeft){
originX = xMin;
}
if(settings->yAxisRight){
originX = xMax;
}
}
originXPixels = MapXCoordinate(originX, xMin, xMax, xPixelMin, xPixelMax);
if(originYInside){
originTextY = 0.0;
}else{
originTextY = yMin + yLength/2.0;
}
originTextYPixels = MapYCoordinate(originTextY, yMin, yMax, yPixelMin, yPixelMax);
if(originXInside){
originTextX = 0.0;
}else{
originTextX = xMin + xLength/2.0;
}
originTextXPixels = MapXCoordinate(originTextX, xMin, xMax, xPixelMin, xPixelMax);
/* Labels */
occupied = Allocate<Rectangle*>(xLabels->stringArray->size() + yLabels->stringArray->size());
for(i = 0.0; i < occupied->size(); i = i + 1.0){
occupied->at(i) = CreateRectangle(0.0, 0.0, 0.0, 0.0);
}
nextRectangle = CreateNumberReference(0.0);
/* x labels */
for(i = 1.0; i <= 5.0; i = i + 1.0){
textOnBottom = true;
if( !settings->xAxisAuto && settings->xAxisTop){
textOnBottom = false;
}
DrawXLabelsForPriority(i, xMin, originYPixels, xMax, xPixelMin, xPixelMax, nextRectangle, gridLabelColor, canvas, xGridPositions, xLabels, xLabelPriorities, occupied, textOnBottom);
}
/* y labels */
for(i = 1.0; i <= 5.0; i = i + 1.0){
textOnLeft = true;
if( !settings->yAxisAuto && settings->yAxisRight){
textOnLeft = false;
}
DrawYLabelsForPriority(i, yMin, originXPixels, yMax, yPixelMin, yPixelMax, nextRectangle, gridLabelColor, canvas, yGridPositions, yLabels, yLabelPriorities, occupied, textOnLeft);
}
/* Draw origin line axis titles. */
axisLabelPadding = 20.0;
/* x origin line */
if(originYInside){
DrawLine1px(canvas, Round(xPixelMin), Round(originYPixels), Round(xPixelMax), Round(originYPixels), GetBlack());
}
/* y origin line */
if(originXInside){
DrawLine1px(canvas, Round(originXPixels), Round(yPixelMin), Round(originXPixels), Round(yPixelMax), GetBlack());
}
/* Draw origin axis titles. */
DrawTextUpwards(canvas, 10.0, floor(originTextYPixels - GetTextWidth(settings->yLabel)/2.0), settings->yLabel, GetBlack());
DrawText(canvas, floor(originTextXPixels - GetTextWidth(settings->xLabel)/2.0), yPixelMax + axisLabelPadding, settings->xLabel, GetBlack());
/* X-grid-markers */
for(i = 0.0; i < xGridPositions->size(); i = i + 1.0){
x = xGridPositions->at(i);
px = MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax);
p = xLabelPriorities->numberArray->at(i);
l = 1.0;
if(p == 1.0){
l = 8.0;
}else if(p == 2.0){
l = 3.0;
}
side = -1.0;
if( !settings->xAxisAuto && settings->xAxisTop){
side = 1.0;
}
DrawLine1px(canvas, px, originYPixels, px, originYPixels + side*l, GetBlack());
}
/* Y-grid-markers */
for(i = 0.0; i < yGridPositions->size(); i = i + 1.0){
y = yGridPositions->at(i);
py = MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax);
p = yLabelPriorities->numberArray->at(i);
l = 1.0;
if(p == 1.0){
l = 8.0;
}else if(p == 2.0){
l = 3.0;
}
side = 1.0;
if( !settings->yAxisAuto && settings->yAxisRight){
side = -1.0;
}
DrawLine1px(canvas, originXPixels, py, originXPixels + side*l, py, GetBlack());
}
/* Draw points */
for(plot = 0.0; plot < settings->scatterPlotSeries->size(); plot = plot + 1.0){
sp = settings->scatterPlotSeries->at(plot);
xs = sp->xs;
ys = sp->ys;
linearInterpolation = sp->linearInterpolation;
x1Ref = Allocate<NumberReference>();
y1Ref = Allocate<NumberReference>();
x2Ref = Allocate<NumberReference>();
y2Ref = Allocate<NumberReference>();
if(linearInterpolation){
prevSet = false;
xPrev = 0.0;
yPrev = 0.0;
for(i = 0.0; i < xs->size(); i = i + 1.0){
x = xs->at(i);
y = ys->at(i);
if(prevSet){
x1Ref->numberValue = xPrev;
y1Ref->numberValue = yPrev;
x2Ref->numberValue = x;
y2Ref->numberValue = y;
success = CropLineWithinBoundary(x1Ref, y1Ref, x2Ref, y2Ref, xMin, xMax, yMin, yMax);
if(success){
pxPrev = floor(MapXCoordinate(x1Ref->numberValue, xMin, xMax, xPixelMin, xPixelMax));
pyPrev = floor(MapYCoordinate(y1Ref->numberValue, yMin, yMax, yPixelMin, yPixelMax));
px = floor(MapXCoordinate(x2Ref->numberValue, xMin, xMax, xPixelMin, xPixelMax));
py = floor(MapYCoordinate(y2Ref->numberValue, yMin, yMax, yPixelMin, yPixelMax));
if(aStringsEqual(sp->lineType, toVector(L"solid")) && sp->lineThickness == 1.0){
DrawLine1px(canvas, pxPrev, pyPrev, px, py, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"solid"))){
DrawLine(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"dashed"))){
linePattern = GetLinePattern1();
DrawLineBresenhamsAlgorithmThickPatterned(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, linePattern, patternOffset, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"dotted"))){
linePattern = GetLinePattern2();
DrawLineBresenhamsAlgorithmThickPatterned(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, linePattern, patternOffset, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"dotdash"))){
linePattern = GetLinePattern3();
DrawLineBresenhamsAlgorithmThickPatterned(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, linePattern, patternOffset, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"longdash"))){
linePattern = GetLinePattern4();
DrawLineBresenhamsAlgorithmThickPatterned(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, linePattern, patternOffset, sp->color);
}else if(aStringsEqual(sp->lineType, toVector(L"twodash"))){
linePattern = GetLinePattern5();
DrawLineBresenhamsAlgorithmThickPatterned(canvas, pxPrev, pyPrev, px, py, sp->lineThickness, linePattern, patternOffset, sp->color);
}
}
}
prevSet = true;
xPrev = x;
yPrev = y;
}
}else{
for(i = 0.0; i < xs->size(); i = i + 1.0){
x = xs->at(i);
y = ys->at(i);
if(x > xMin && x < xMax && y > yMin && y < yMax){
x = floor(MapXCoordinate(x, xMin, xMax, xPixelMin, xPixelMax));
y = floor(MapYCoordinate(y, yMin, yMax, yPixelMin, yPixelMax));
if(aStringsEqual(sp->pointType, toVector(L"crosses"))){