139 lines
5.3 KiB
Python
139 lines
5.3 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""生成 docs/images/物理分区布局.svg —— GD5F2GQ5UE 全片分区布局图（纯标准库）。
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由 gen_frame_svg.py 复制而来（build() 与数据解耦，通用）：协议帧图按"字节"计量
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（字段宽 ∝ 字节数），本图按"MB"计量（分区宽 ∝ MB 数），其余约定一致——
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分段矩形 + 偏移标尺 + 逐段标注，连续布局无假箭头。
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用法（仓库根目录，任意 python3）：
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python tools/arch_diagram/gen_partition_svg.py
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输出：
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docs/images/物理分区布局.svg
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改分区时：编辑本文件顶部的 FIELDS / TITLE / SUB / FOOT 后重跑。
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"""
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import html
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import os
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ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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OUT = os.path.join(ROOT, "docs", "images", "物理分区布局.svg")
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# ----------------------------- 画布与尺寸参数 -----------------------------
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PAD = 40 # 左右留白
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PX_PER_MB = 4 # 每 MB 像素宽（分区宽 ∝ MB 数）
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BAR_Y = 116 # 分区盒顶 y（标题 / 副标题 / 偏移标尺在其上方）
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BAR_H = 74 # 分区盒高
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NAME_DY = 30 # 分区名在盒内的 y 偏移
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SIZE_DY = 54 # 尺寸标注在盒内的 y 偏移
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RULER_DY = 20 # 偏移标尺线在盒顶上方
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TITLE_FONT = 20
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SUB_FONT = 13
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NAME_FONT = 15
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SIZE_FONT = 12
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RULER_FONT = 12
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FOOT_FONT = 12
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FONT = "Microsoft YaHei, Segoe UI, PingFang SC, sans-serif"
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# ----------------------------- 分区数据（改这里） -----------------------------
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# name=分区名 mb=MB 数（None=变长段，按 DATA_UNITS 画） label=尺寸标注 color/bg=配色
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DATA_UNITS = 5 # 变长段的"代表宽度"（按 N MB 画，仅示意）
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FIELDS = [
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dict(name="ftl_fatfs", mb=256, label="256 MB · Block 0~2047", color="#2563eb", bg="#eff6ff"),
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]
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TITLE = "GD5F2GQ5UE 物理分区布局（256MB）"
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SUB = "单分区：全片划给 FTL（无静态分区）· 块 = 128KB（64 页 × 2KB）· 共 2048 块"
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FOOT = ("ftl_fatfs：dhara FTL + FatFS 占用全部 2048 块（偏移 0 ~ 256MB）· "
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"详见 docs/STM32F4-Base存储架构说明.md §1")
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# ----------------------------- 工具函数 -----------------------------
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def esc(s):
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return html.escape(s, quote=True)
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def field_w(f):
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return (f["mb"] if f["mb"] is not None else DATA_UNITS) * PX_PER_MB
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def offset_labels(fields):
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"""按分区 MB 数累计边界偏移；偏移标注统一带 MB 单位。"""
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labs, off = ["0"], 0
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for f in fields:
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off += f["mb"] if f["mb"] is not None else DATA_UNITS
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labs.append("%d MB" % off)
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return labs
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# ----------------------------- 生成 -----------------------------
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def build():
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out = []
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add = out.append
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frame_w = sum(field_w(f) for f in FIELDS)
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W = frame_w + 2 * PAD
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# 预计算各分区 x / 宽
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segs, x = [], PAD
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for f in FIELDS:
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w = field_w(f)
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segs.append([f, x, w])
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x += w
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labels = offset_labels(FIELDS)
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total_h = BAR_Y + BAR_H + 56
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add('<rect x="0" y="0" width="%d" height="%d" fill="#ffffff"/>' % (W, total_h))
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# 标题 + 副标题
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add('<text x="%d" y="40" font-size="%d" font-weight="700" fill="#0f172a">%s</text>'
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% (PAD, TITLE_FONT, esc(TITLE)))
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add('<text x="%d" y="64" font-size="%d" fill="#64748b">%s</text>'
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% (PAD, SUB_FONT, esc(SUB)))
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# 偏移标尺（每个分区边界一个刻度 + 偏移标注）
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ruler_y = BAR_Y - RULER_DY
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add('<line x1="%d" y1="%d" x2="%d" y2="%d" stroke="#cbd5e1" stroke-width="1"/>'
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% (PAD, ruler_y, PAD + frame_w, ruler_y))
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bounds = [PAD] + [s[1] + s[2] for s in segs]
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for i, bx in enumerate(bounds):
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add('<line x1="%d" y1="%d" x2="%d" y2="%d" stroke="#94a3b8" stroke-width="1.5"/>'
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% (bx, ruler_y - 4, bx, ruler_y + 4))
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lab = labels[i] if i < len(labels) else "?"
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add('<text x="%d" y="%d" font-size="%d" fill="#94a3b8" text-anchor="middle">%s</text>'
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% (bx, ruler_y - 8, RULER_FONT, esc(lab)))
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# 分区盒（名在上、尺寸在下）
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for (f, bx, bw) in segs:
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add('<rect x="%d" y="%d" width="%d" height="%d" fill="%s" stroke="%s" stroke-width="1.5"/>'
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% (bx, BAR_Y, bw, BAR_H, f["bg"], f["color"]))
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cx = bx + bw / 2.0
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add('<text x="%.1f" y="%d" font-size="%d" font-weight="700" fill="#0f172a" '
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'text-anchor="middle">%s</text>'
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% (cx, BAR_Y + NAME_DY, NAME_FONT, esc(f["name"])))
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add('<text x="%.1f" y="%d" font-size="%d" fill="%s" text-anchor="middle">%s</text>'
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% (cx, BAR_Y + SIZE_DY, SIZE_FONT, f["color"], esc(f["label"])))
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# 脚注
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add('<text x="%d" y="%d" font-size="%d" fill="#94a3b8">%s</text>'
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% (PAD, total_h - 16, FOOT_FONT, esc(FOOT)))
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svg = ('<svg xmlns="http://www.w3.org/2000/svg" width="%d" height="%d" '
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'viewBox="0 0 %d %d" font-family="%s">\n%s\n</svg>\n'
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% (W, total_h, W, total_h, FONT, "\n".join(out)))
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return svg, W, total_h
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def main():
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svg, W, h = build()
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with open(OUT, "w", encoding="utf-8", newline="\n") as f:
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f.write(svg)
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import xml.etree.ElementTree as ET
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ET.fromstring(svg)
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print("OK %d bytes, canvas %dx%d -> %s" % (len(svg.encode("utf-8")), W, h, OUT))
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if __name__ == "__main__":
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main()
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