// draw track line with data labels private void trackLineLabel(XYChart c, int mouseX) { DrawArea d = c.initDynamicLayer(); PlotArea plotArea = c.getPlotArea(); double xValue = c.getNearestXValue(mouseX); int xCoor = c.getXCoor(xValue); d.vline(plotArea.getTopY(), plotArea.getBottomY(), xCoor, d.dashLineColor(0x000000, 0x0101)); // container to hold the legned entries ArrayList legendEntries = new ArrayList(); for (int i = 0; i < c.getLayerCount(); ++i) { Layer layer = c.getLayerByZ(i); int xIndex = layer.getXIndexOf(xValue); // iterate through all the data sets in the layer for (int j = 0; j < layer.getDataSetCount(); ++j) { ChartDirector.DataSet dataSet = layer.getDataSetByZ(j); // we are only interested in visibale sets with names string dataName = dataSet.getDataName(); int color = dataSet.getDataColor(); if ((!string.IsNullOrEmpty(dataName)) && (color != Chart.Transparent)) { // Build the legend entry, consist of the legend icon, name and data value. double dataValue = dataSet.getValue(xIndex); legendEntries.Add("<*block*>" + dataSet.getLegendIcon() + " " + dataName + ": " + (( dataValue == Chart.NoValue) ? "N/A" : c.formatValue(dataValue, "{value|P4}")) + "<*/*>"); // Draw a track dot for data points within the plot area int yCoor = c.getYCoor(dataSet.getPosition(xIndex), dataSet.getUseYAxis()); if ((yCoor >= plotArea.getTopY()) && (yCoor <= plotArea.getBottomY())) { d.circle(xCoor, yCoor, 4, 4, color, color); } } } } // Create the legend by joining the legend entries legendEntries.Reverse(); string legendText = "<*block,maxWidth=" + plotArea.getWidth() + "*><*block*><*font=Arial Bold*>[" + c.xAxis().getFormattedLabel(xValue, "{value|P4") + "]<*/*> " + String.Join( " ", (string[])legendEntries.ToArray(typeof(string))) + "<*/*>"; // Display the legend on the top of the plot area TTFText t = d.text(legendText, "Arial", 8); t.draw(plotArea.getLeftX() + 5, plotArea.getTopY() - 3, 0x000000, Chart.BottomLeft); }
// // Draw the track box with legend // private void trackBoxLegend(XYChart c, int mouseX, int mouseY) { // Clear the current dynamic layer and get the DrawArea object to draw on it. DrawArea d = c.initDynamicLayer(); // The plot area object PlotArea plotArea = c.getPlotArea(); // Get the data x-value that is nearest to the mouse double xValue = c.getNearestXValue(mouseX); // Compute the position of the box. This example assumes a label based x-axis, in which the // labeling spacing is one x-axis unit. So the left and right sides of the box is 0.5 unit from // the central x-value. int boxLeft = c.getXCoor(xValue - 0.5); int boxRight = c.getXCoor(xValue + 0.5); int boxTop = plotArea.getTopY(); int boxBottom = plotArea.getBottomY(); // Draw the track box d.rect(boxLeft, boxTop, boxRight, boxBottom, 0x000000, Chart.Transparent); // Container to hold the legend entries ArrayList legendEntries = new ArrayList(); // Iterate through all layers to build the legend array for (int i = 0; i < c.getLayerCount(); ++i) { Layer layer = c.getLayerByZ(i); // The data array index of the x-value int xIndex = layer.getXIndexOf(xValue); // Iterate through all the data sets in the layer for (int j = 0; j < layer.getDataSetCount(); ++j) { ChartDirector.DataSet dataSet = layer.getDataSetByZ(j); // Build the legend entry, consist of the legend icon, the name and the data value. double dataValue = dataSet.getValue(xIndex); if ((dataValue != Chart.NoValue) && (dataSet.getDataColor() != Chart.Transparent)) { legendEntries.Add(dataSet.getLegendIcon() + " " + dataSet.getDataName() + ": " + c.formatValue(dataValue, "{value|P4}")); } } } // Create the legend by joining the legend entries if (legendEntries.Count > 0) { legendEntries.Reverse(); string legend = "<*block,bgColor=FFFFCC,edgeColor=000000,margin=5*><*font,underline=1*>" + c.xAxis().getFormattedLabel(xValue) + "<*/font*><*br*>" + String.Join("<*br*>", (string[]) legendEntries.ToArray(typeof(string))) + "<*/*>"; // Display the legend at the bottom-right side of the mouse cursor, and make sure the legend // will not go outside the chart image. TTFText t = d.text(legend, "Arial Bold", 8); t.draw(Math.Min(mouseX + 12, c.getWidth() - t.getWidth()), Math.Min(mouseY + 18, c.getHeight() - t.getHeight()), 0x000000, Chart.TopLeft); } }
// // Draw the track line with legend // private void trackLineLegend(XYChart c, int mouseX) { // Clear the current dynamic layer and get the DrawArea object to draw on it. DrawArea d = c.initDynamicLayer(); // The plot area object PlotArea plotArea = c.getPlotArea(); // Get the data x-value that is nearest to the mouse, and find its pixel coordinate. double xValue = c.getNearestXValue(mouseX); int xCoor = c.getXCoor(xValue); // Draw a vertical track line at the x-position d.vline(plotArea.getTopY(), plotArea.getBottomY(), xCoor, 0xaaaaaa); // Container to hold the legend entries var legendEntries = new List <string>(); // Iterate through all layers to build the legend array for (int i = 0; i < c.getLayerCount(); ++i) { Layer layer = c.getLayerByZ(i); // The data array index of the x-value int xIndex = layer.getXIndexOf(xValue); // Iterate through all the data sets in the layer for (int j = 0; j < layer.getDataSetCount(); ++j) { ChartDirector.DataSet dataSet = layer.getDataSetByZ(j); // We are only interested in visible data sets with names string dataName = dataSet.getDataName(); int color = dataSet.getDataColor(); if ((!string.IsNullOrEmpty(dataName)) && (color != Chart.Transparent)) { // Build the legend entry, consist of the legend icon, name and data value. double dataValue = dataSet.getValue(xIndex); legendEntries.Add("<*block*>" + dataSet.getLegendIcon() + " " + dataName + ": " + (( dataValue == Chart.NoValue) ? "N/A" : c.formatValue(dataValue, "{value|P4}")) + "<*/*>"); // Draw a track dot for data points within the plot area int yCoor = c.getYCoor(dataSet.getPosition(xIndex), dataSet.getUseYAxis()); if ((yCoor >= plotArea.getTopY()) && (yCoor <= plotArea.getBottomY())) { d.circle(xCoor, yCoor, 4, 4, color, color); } } } } // Create the legend by joining the legend entries legendEntries.Reverse(); string legendText = "<*block,maxWidth=" + plotArea.getWidth() + "*><*block*><*font=Arial Bold*>[" + c.xAxis().getFormattedLabel(xValue, "mmm dd, yyyy") + "]<*/*> " + String.Join( " ", legendEntries) + "<*/*>"; // Display the legend on the top of the plot area TTFText t = d.text(legendText, "Arial Bold", 10); t.draw(plotArea.getLeftX() + 5, plotArea.getTopY() - 3, 0x000000, Chart.BottomLeft); }