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Clean up review charts: crop windows, simplify entry/exit markers.

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Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
dekun
2026-10-21 17:27:49 +08:00
parent 39bff20d60
commit 11c14fbb21
4 changed files with 162 additions and 109 deletions
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app/static/js/charts.js
+143 -98
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@@ -1,5 +1,7 @@
/** 轻量蜡烛图（无外部依赖）：复盘四周期 + 入场/出场标注 */
/** 复盘四周期蜡烛图：围绕成交裁剪窗口，入场/出场轻量标注 */
(function () {
var TF_MAX = { M1: 90, M5: 48, M15: 36, H1: 24 };
function num(v) {
if (v == null || v === "") return null;
var n = Number(v);
@@ -20,27 +22,50 @@
return best;
}
function drawCandleChart(canvas, bars, markers) {
/** 只保留成交前后一段，避免 M1 挤满、H1 太空 */
function cropBars(bars, markers, tf) {
if (!bars.length) return bars;
var maxN = TF_MAX[tf] || 60;
if (bars.length <= maxN) return bars;
var a = nearestBarIndex(bars, markers.openTs);
var b = markers.closeTs != null ? nearestBarIndex(bars, markers.closeTs) : a;
if (a < 0) a = Math.floor(bars.length / 2);
if (b < 0) b = a;
var lo = Math.min(a, b);
var hi = Math.max(a, b);
var span = hi - lo + 1;
var pad = Math.max(8, Math.floor((maxN - span) / 2));
var start = Math.max(0, lo - pad);
var end = Math.min(bars.length, start + maxN);
start = Math.max(0, end - maxN);
return bars.slice(start, end);
}
function drawCandleChart(canvas, bars, markers, tf) {
if (!canvas || !bars || !bars.length) return;
bars = cropBars(bars, markers || {}, tf);
markers = markers || {};
var dpr = window.devicePixelRatio || 1;
var cssW = canvas.clientWidth || 400;
var cssH = canvas.clientHeight || 180;
var cssH = canvas.clientHeight || 200;
canvas.width = cssW * dpr;
canvas.height = cssH * dpr;
var ctx = canvas.getContext("2d");
ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
var padL = 8;
var padR = 8;
var padT = 18;
var padB = 8;
var padL = 6;
var padR = 56; // 右侧留给价签
var padT = 10;
var padB = 6;
var min = Infinity;
var max = -Infinity;
bars.forEach(function (b) {
min = Math.min(min, b.low);
max = Math.max(max, b.high);
});
markers = markers || {};
if (markers.openPrice != null) {
min = Math.min(min, markers.openPrice);
max = Math.max(max, markers.openPrice);
@@ -49,11 +74,8 @@
min = Math.min(min, markers.closePrice);
max = Math.max(max, markers.closePrice);
}
if (!(max > min)) {
max = min + 1;
}
// 上下留一点边，避免标注贴边
var padPrice = (max - min) * 0.04 || 0.5;
if (!(max > min)) max = min + 1;
var padPrice = (max - min) * 0.08 || 0.8;
min -= padPrice;
max += padPrice;
@@ -74,6 +96,7 @@
};
// K 线
var bodyW = Math.max(1.5, Math.min(8, slot * 0.55));
bars.forEach(function (b, i) {
var x = xOf(i);
var up = b.close >= b.open;
@@ -88,101 +111,122 @@
var y2 = yOf(b.close);
var top = Math.min(y1, y2);
var bh = Math.max(1, Math.abs(y2 - y1));
ctx.fillRect(x - Math.max(1, slot * 0.3), top, Math.max(2, slot * 0.6), bh);
ctx.fillRect(x - bodyW / 2, top, bodyW, bh);
});
function drawPriceLine(price, color, label) {
if (price == null) return;
var y = yOf(price);
ctx.save();
ctx.strokeStyle = color;
ctx.lineWidth = 1.2;
ctx.setLineDash([5, 4]);
ctx.beginPath();
ctx.moveTo(padL, y);
ctx.lineTo(cssW - padR, y);
ctx.stroke();
ctx.setLineDash([]);
ctx.fillStyle = color;
ctx.font = "11px Microsoft YaHei UI, sans-serif";
ctx.textAlign = "left";
ctx.textBaseline = "bottom";
ctx.fillText(label + " " + price.toFixed(3), padL + 2, y - 2);
ctx.restore();
}
function drawMarker(i, price, color, label) {
if (i < 0 || price == null) return;
var x = xOf(i);
var y = yOf(price);
// 竖线标时刻
ctx.save();
ctx.strokeStyle = color;
ctx.globalAlpha = 0.35;
ctx.lineWidth = 1;
ctx.setLineDash([3, 3]);
ctx.beginPath();
ctx.moveTo(x, padT);
ctx.lineTo(x, cssH - padB);
ctx.stroke();
ctx.setLineDash([]);
ctx.globalAlpha = 1;
// 圆点
ctx.beginPath();
ctx.arc(x, y, 5, 0, Math.PI * 2);
ctx.fillStyle = color;
ctx.fill();
ctx.lineWidth = 1.5;
ctx.strokeStyle = "#ffffff";
ctx.stroke();
// 三角指向
ctx.beginPath();
ctx.moveTo(x, y - 12);
ctx.lineTo(x - 5, y - 5);
ctx.lineTo(x + 5, y - 5);
ctx.closePath();
ctx.fillStyle = color;
ctx.fill();
ctx.font = "bold 11px Microsoft YaHei UI, sans-serif";
ctx.fillStyle = color;
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
ctx.fillText(label, x, y - 14);
ctx.restore();
}
var entryColor = "#4cc2ff";
var exitColor = "#f0b429";
var entryIdx = nearestBarIndex(bars, markers.openTs);
var exitIdx = nearestBarIndex(bars, markers.closeTs);
drawPriceLine(markers.openPrice, entryColor, "入场");
drawPriceLine(markers.closePrice, exitColor, "出场");
drawMarker(entryIdx, markers.openPrice, entryColor, "入场");
if (markers.closeTs != null && markers.closePrice != null) {
drawMarker(exitIdx, markers.closePrice, exitColor, "出场");
}
// 入场→出场连线（同图内）
if (
entryIdx >= 0 &&
exitIdx >= 0 &&
markers.openPrice != null &&
var exitIdx =
markers.closeTs != null ? nearestBarIndex(bars, markers.closeTs) : -1;
var hasExit =
markers.closeTs != null &&
markers.closePrice != null &&
markers.closeTs != null
) {
exitIdx >= 0;
var openP = markers.openPrice;
var closeP = markers.closePrice;
var samePrice =
openP != null &&
closeP != null &&
Math.abs(openP - closeP) < 0.08;
// 价格横线：价差很小时只画一条，避免两行字叠在一起
function drawHLine(price, color) {
var y = yOf(price);
ctx.save();
ctx.strokeStyle = "#c084fc";
ctx.lineWidth = 1.4;
ctx.strokeStyle = color;
ctx.globalAlpha = 0.7;
ctx.lineWidth = 1;
ctx.setLineDash([4, 3]);
ctx.beginPath();
ctx.moveTo(xOf(entryIdx), yOf(markers.openPrice));
ctx.lineTo(xOf(exitIdx), yOf(markers.closePrice));
ctx.moveTo(padL, y);
ctx.lineTo(padL + w, y);
ctx.stroke();
ctx.restore();
return y;
}
function drawRightTag(y, text, color, dy) {
dy = dy || 0;
var ty = Math.max(padT + 10, Math.min(cssH - padB - 4, y + dy));
ctx.save();
ctx.font = "11px Microsoft YaHei UI, sans-serif";
ctx.fillStyle = color;
ctx.textAlign = "left";
ctx.textBaseline = "middle";
ctx.fillText(text, padL + w + 4, ty);
ctx.restore();
}
if (samePrice && openP != null) {
var ySame = drawHLine(openP, entryColor);
drawRightTag(ySame, "入/出 " + openP.toFixed(2), entryColor, 0);
} else {
if (openP != null) {
var yIn = drawHLine(openP, entryColor);
drawRightTag(yIn, "入 " + openP.toFixed(2), entryColor, 0);
}
if (hasExit && closeP != null) {
var yOut = drawHLine(closeP, exitColor);
var dy = 0;
if (openP != null && Math.abs(yOf(openP) - yOut) < 14) {
dy = yOut < yOf(openP) ? -12 : 12;
}
drawRightTag(yOut, "出 " + closeP.toFixed(2), exitColor, dy);
}
}
// 点：无竖线、无三角、无紫连线 —— 只留圆点 + 短字
function drawDot(i, price, color, label, labelSide) {
if (i < 0 || price == null) return;
var x = xOf(i);
var y = yOf(price);
ctx.save();
ctx.beginPath();
ctx.arc(x, y, 4, 0, Math.PI * 2);
ctx.fillStyle = color;
ctx.fill();
ctx.lineWidth = 1.5;
ctx.strokeStyle = "#0e0e18";
ctx.stroke();
ctx.font = "bold 10px Microsoft YaHei UI, sans-serif";
ctx.fillStyle = color;
ctx.textBaseline = "bottom";
if (labelSide === "left") {
ctx.textAlign = "right";
ctx.fillText(label, x - 7, y - 4);
} else if (labelSide === "right") {
ctx.textAlign = "left";
ctx.fillText(label, x + 7, y - 4);
} else {
ctx.textAlign = "center";
ctx.fillText(label, x, y - 7);
}
ctx.restore();
}
var closeTogether =
hasExit && entryIdx >= 0 && Math.abs(exitIdx - entryIdx) <= 2;
if (entryIdx >= 0 && openP != null) {
drawDot(
entryIdx,
openP,
entryColor,
"入",
closeTogether ? "left" : "center"
);
}
if (hasExit) {
drawDot(
exitIdx,
closeP,
exitColor,
"出",
closeTogether ? "right" : "center"
);
}
}
@@ -200,7 +244,8 @@
document.querySelectorAll("canvas.chart-canvas").forEach(function (el) {
try {
var bars = JSON.parse(el.dataset.bars || "[]");
drawCandleChart(el, bars, readMarkers(el));
var tf = (el.dataset.tf || el.id || "").replace(/^chart-/, "") || "M1";
drawCandleChart(el, bars, readMarkers(el), tf);
} catch (e) {
console.warn(e);
}