From ca0bbe19b841165dff719da3c0953a8db4d8e6c4 Mon Sep 17 00:00:00 2001
From: xyc <jc_xiong@hotmail.com>
Date: 星期三, 07 十月 2026 17:28:41 +0800
Subject: [PATCH] docs(交接): 添加 10-07 关机快照
---
traffic-audit-server/src/main/java/com/trafficaudit/holiday/service/HolidayTrendChartService.java | 113 +++++++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 87 insertions(+), 26 deletions(-)
diff --git a/traffic-audit-server/src/main/java/com/trafficaudit/holiday/service/HolidayTrendChartService.java b/traffic-audit-server/src/main/java/com/trafficaudit/holiday/service/HolidayTrendChartService.java
index d01765e..0f06317 100644
--- a/traffic-audit-server/src/main/java/com/trafficaudit/holiday/service/HolidayTrendChartService.java
+++ b/traffic-audit-server/src/main/java/com/trafficaudit/holiday/service/HolidayTrendChartService.java
@@ -74,10 +74,11 @@
private static final Color AXIS_COLOR = Color.BLACK;
private static final Color MUTED_TEXT_COLOR = new Color(102, 102, 102);
private static final double UNIT_LABEL_BAND = 58.0;
- private static final double RIGHT_LABEL_BAND = 74.0;
+ private static final double RIGHT_LABEL_BAND = 140.0;
private static final double ITEM_LABEL_GAP = 10.0;
private static final float HALO_OUTLINE_WIDTH = 4.0f;
private static final int PERCENT_ITEM_LABEL_DECIMALS = 1;
+ private static final double LINE_CHART_HEIGHT_SCALE = 1.20;
private static final Color ITEM_LABEL_COLOR = new Color(55, 55, 55);
private static final Color[] SERIES_COLORS = {
new Color(192, 80, 77),
@@ -141,8 +142,8 @@
NumberAxis rangeAxis = new NumberAxis();
rangeAxis.setAutoRangeIncludesZero(false);
- rangeAxis.setLowerMargin(0.12);
- rangeAxis.setUpperMargin(0.16);
+ rangeAxis.setLowerMargin(0.04);
+ rangeAxis.setUpperMargin(0.07);
rangeAxis.setTickLabelFont(TICK_FONT);
rangeAxis.setLabelFont(LABEL_FONT);
rangeAxis.setTickLabelPaint(MUTED_TEXT_COLOR);
@@ -173,7 +174,8 @@
BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
}
plot.setRenderer(renderer);
- return render(chart, width, height, yAxisLabel, true, percentAxis, valueDecimals);
+ return render(chart, width, scaleLineChartHeight(height),
+ yAxisLabel, true, percentAxis, valueDecimals);
}
public byte[] pieChart(String valueSuffix, List<ChartCategory> categories,
@@ -613,7 +615,7 @@
occupied.add(new Rectangle2D.Double(textX, baseline - metrics.getAscent(),
width, metrics.getHeight()));
} else {
- horizontalCallouts.add(new HorizontalStackCallout(Math.min(startX, endX),
+ horizontalCallouts.add(new HorizontalStackCallout(row, Math.min(startX, endX),
Math.max(startX, endX), centerY, text, seriesColor(row)));
}
} else {
@@ -643,7 +645,8 @@
}
}
if (horizontal) {
- drawHorizontalStackCallouts(graphics, horizontalCallouts, dataArea, metrics, occupied);
+ drawHorizontalStackCallouts(graphics, horizontalCallouts, dataArea, metrics, occupied,
+ rows >= 3);
} else {
for (int column = 0; column < columns; column++) {
drawStackCalloutColumn(graphics, image, callouts.get(column), column, columns,
@@ -655,7 +658,8 @@
private void drawHorizontalStackCallouts(Graphics2D graphics,
List<HorizontalStackCallout> items,
Rectangle2D dataArea, FontMetrics metrics,
- List<Rectangle2D> occupied) {
+ List<Rectangle2D> occupied,
+ boolean packIntoColumns) {
if (items.isEmpty()) return;
Map<Long, List<HorizontalStackCallout>> rows = new LinkedHashMap<>();
for (HorizontalStackCallout item : items) {
@@ -671,36 +675,82 @@
Collections.sort(row, new Comparator<HorizontalStackCallout>() {
@Override
public int compare(HorizontalStackCallout first, HorizontalStackCallout second) {
- return Double.compare(first.getStartX(), second.getStartX());
+ return Integer.compare(first.getSeriesIndex(), second.getSeriesIndex());
}
});
- int widest = 0;
- double columnX = 0.0;
- for (HorizontalStackCallout item : row) {
- widest = Math.max(widest, metrics.stringWidth(item.getText()));
- columnX = Math.max(columnX, item.getEndX() + 8.0);
+ if (!packIntoColumns) {
+ int widest = 0;
+ double columnX = 0.0;
+ for (HorizontalStackCallout item : row) {
+ widest = Math.max(widest, metrics.stringWidth(item.getText()));
+ columnX = Math.max(columnX, item.getEndX() + 8.0);
+ }
+ // Keep the label column inside the reserved right margin.
+ columnX = Math.min(columnX, dataArea.getMaxX() + RIGHT_LABEL_BAND - widest);
+ int height = metrics.getHeight();
+ double step = height + 3.0;
+ double centerY = row.get(0).getY();
+ double top = centerY - (step * row.size()) / 2.0 + (step - height) / 2.0;
+ for (int i = 0; i < row.size(); i++) {
+ HorizontalStackCallout item = row.get(i);
+ int width = metrics.stringWidth(item.getText());
+ double x = columnX;
+ double y = top + i * step;
+ graphics.setColor(item.getColor());
+ graphics.setStroke(new BasicStroke(1.4f, BasicStroke.CAP_ROUND,
+ BasicStroke.JOIN_ROUND));
+ graphics.drawLine((int) Math.round(item.getEndX()), (int) Math.round(item.getY()),
+ (int) Math.round(x - 3.0), (int) Math.round(y + height / 2.0));
+ drawLabelWithHalo(graphics, item.getText(),
+ new Rectangle2D.Double(x, y, width, height), metrics, item.getColor());
+ occupied.add(new Rectangle2D.Double(x - 2.0, y - 2.0,
+ width + 4.0, height + 4.0));
+ }
+ continue;
}
- // Keep the label column inside the reserved right margin.
- columnX = Math.min(columnX, dataArea.getMaxX() + RIGHT_LABEL_BAND - widest);
+ // Small slices are labelled outside the bar. Packing those labels
+ // into two columns keeps each day's callouts inside its own row.
+ int columnCount = row.size() <= 1 ? 1 : 2;
+ int rowCount = (int) Math.ceil(row.size() / (double) columnCount);
+ double[] columnWidths = new double[columnCount];
+ for (int i = 0; i < row.size(); i++) {
+ int column = columnCount == 1 ? 0 : i % columnCount;
+ columnWidths[column] = Math.max(columnWidths[column],
+ metrics.stringWidth(row.get(i).getText()));
+ }
+ double columnGap = 10.0;
+ double blockWidth = columnGap * (columnCount - 1);
+ for (double columnWidth : columnWidths) blockWidth += columnWidth;
+ double blockLeft = dataArea.getMaxX() + 8.0;
+ double blockRight = dataArea.getMaxX() + RIGHT_LABEL_BAND;
+ blockLeft += Math.max(0.0, (blockRight - blockLeft - blockWidth) / 2.0);
+ double[] columnCenters = new double[columnCount];
+ double cursor = blockLeft;
+ for (int column = 0; column < columnCount; column++) {
+ columnCenters[column] = cursor + columnWidths[column] / 2.0;
+ cursor += columnWidths[column] + columnGap;
+ }
int height = metrics.getHeight();
- double step = height + 3.0;
- double centerY = row.get(0).getY();
- double top = centerY - (step * row.size()) / 2.0 + (step - height) / 2.0;
+ double rowStep = height + 3.0;
+ double totalHeight = rowCount * height + (rowCount - 1) * (rowStep - height);
+ double top = row.get(0).getY() - totalHeight / 2.0;
for (int i = 0; i < row.size(); i++) {
HorizontalStackCallout item = row.get(i);
+ int column = columnCount == 1 ? 0 : i % columnCount;
+ int rowIndex = columnCount == 1 ? i : i / columnCount;
+ int itemsInRow = Math.min(columnCount, row.size() - rowIndex * columnCount);
int width = metrics.stringWidth(item.getText());
- double x = columnX;
- double y = top + i * step;
- graphics.setColor(item.getColor());
- graphics.setStroke(new BasicStroke(1.4f, BasicStroke.CAP_ROUND,
- BasicStroke.JOIN_ROUND));
- graphics.drawLine((int) Math.round(item.getEndX()), (int) Math.round(item.getY()),
- (int) Math.round(x - 3.0), (int) Math.round(y + height / 2.0));
+ double centerX = itemsInRow == 1 && columnCount > 1
+ ? blockLeft + blockWidth / 2.0
+ : columnCenters[column];
+ double x = centerX - width / 2.0;
+ double y = top + rowIndex * rowStep;
drawLabelWithHalo(graphics, item.getText(),
new Rectangle2D.Double(x, y, width, height), metrics, item.getColor());
occupied.add(new Rectangle2D.Double(x - 2.0, y - 2.0,
width + 4.0, height + 4.0));
}
+
}
}
@@ -794,14 +844,16 @@
}
private static class HorizontalStackCallout {
+ private final int seriesIndex;
private final double startX;
private final double endX;
private final double y;
private final String text;
private final Color color;
- private HorizontalStackCallout(double startX, double endX, double y,
+ private HorizontalStackCallout(int seriesIndex, double startX, double endX, double y,
String text, Color color) {
+ this.seriesIndex = seriesIndex;
this.startX = startX;
this.endX = endX;
this.y = y;
@@ -809,6 +861,7 @@
this.color = color;
}
+ private int getSeriesIndex() { return seriesIndex; }
private double getStartX() { return startX; }
private double getEndX() { return endX; }
private double getY() { return y; }
@@ -1115,6 +1168,14 @@
return total;
}
+ static int scaleLineChartHeight(int height) {
+ return (int) Math.round(height * LINE_CHART_HEIGHT_SCALE);
+ }
+
+ static long scaleLineChartHeight(long height) {
+ return Math.round(height * LINE_CHART_HEIGHT_SCALE);
+ }
+
static BigDecimal displayValue(BigDecimal value, boolean percentItemLabels, int valueDecimals) {
if (value == null) return null;
int scale = percentItemLabels ? PERCENT_ITEM_LABEL_DECIMALS + 2 : valueDecimals;
--
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