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39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
#include "graph_view.h"
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#include <assert.h>
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#include <math.h>
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namespace Regression {
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GraphView::GraphView(Store * store, CurveViewCursor * cursor, ::BannerView * bannerView, View * cursorView) :
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CurveView(store, cursor, bannerView, cursorView, 0.05f, 0.05f, 0.25f, 0.05f),
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m_store(store)
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{
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}
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void GraphView::drawRect(KDContext * ctx, KDRect rect) const {
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ctx->fillRect(rect, KDColorWhite);
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drawGrid(ctx, rect);
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drawAxes(ctx, rect, Axis::Horizontal);
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drawAxes(ctx, rect, Axis::Vertical);
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drawLabels(ctx, rect, Axis::Horizontal, true);
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drawLabels(ctx, rect, Axis::Vertical, true);
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drawCurve(ctx, rect, nullptr, KDColorRed);
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for (int index = 0; index < m_store->numberOfPairs(); index++) {
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drawDot(ctx, rect, m_store->get(0,index), m_store->get(1,index), KDColorBlue, KDSize(k_dotSize, k_dotSize));
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}
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drawDot(ctx, rect, m_store->meanOfColumn(0), m_store->meanOfColumn(1), KDColorGreen, KDSize(k_dotSize, k_dotSize));
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}
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char * GraphView::label(Axis axis, int index) const {
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if (axis == Axis::Vertical) {
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return (char *)m_yLabels[index];
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}
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return (char *)m_xLabels[index];
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}
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float GraphView::evaluateModelWithParameter(Model * curve, float t) const {
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return m_store->yValueForXValue(t);
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}
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}
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