From 12447b784945f1c31570ef18b8ce36d85ab4bb54 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Thu, 30 Apr 2026 17:59:53 -0700
Subject: [PATCH] Add symbols SVG.

---
 rust/pspp/src/spv/read/graph/symbols.svg | 273 +++++++++++++++++++++++
 1 file changed, 273 insertions(+)
 create mode 100644 rust/pspp/src/spv/read/graph/symbols.svg

diff --git a/rust/pspp/src/spv/read/graph/symbols.svg b/rust/pspp/src/spv/read/graph/symbols.svg
new file mode 100644
index 0000000000..4e153ec95d
--- /dev/null
+++ b/rust/pspp/src/spv/read/graph/symbols.svg
@@ -0,0 +1,273 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <defs>
+    <!--
+        An SVG <pattern> for each of the symbols supported by VizML.
+
+        Each pattern nominally occupies the box (0,0)-(10,10), although a few
+        spill over the margin.
+    -->
+    <g id="square">
+      <rect x="0" y="0" width="10" height="10"/>
+    </g>
+    <g id="none"/>
+    <g id="arc" hollow="true">
+      <path d="M0,5 A5 5 180 1 1 10,5" fill="none"/>
+    </g>
+    <g id="arcDown" hollow="true">
+      <path d="M0,5 A5 5 180 1 0 10,5" fill="none"/>
+    </g>
+    <g id="circle">
+      <circle cx="5" cy="5" r="5"/>
+    </g>
+    <g id="cross">
+      <line x1="0" y1="0" x2="10" y2="10"/>
+      <line x1="0" y1="10" x2="10" y2="0"/>
+    </g>
+    <g id="plus" hollow="true">
+      <line x1="0" y1="5" x2="10" y2="5"/>
+      <line x1="5" y1="0" x2="5" y2="10"/>
+    </g>
+    <g id="arrow" hollow="true">
+      <!-- points up -->
+      <line x1="5" y1="0" x2="5" y2="10"/>
+      <line x1="5" y1="0" x2="2.5" y2="2.5"/>
+      <line x1="5" y1="0" x2="7.5" y2="2.5"/>
+    </g>
+    <g id="line" hollow="true">
+      <line x1="0" y1="5" x2="10" y2="5"/>
+    </g>
+    <g id="male">
+      <circle cx="5" cy="5" r="3.33333"/>
+      <line x1="7.35702" y1="2.64298" x2="9.71404" y2="0.28596"/>
+      <line x1="9.71404" y1="0.28596" x2="7.35702" y2="0.28596"/>
+      <line x1="9.71404" y1="0.28596" x2="9.71404" y2="2.64298"/>
+    </g>
+    <g id="female">
+      <circle cx="5" cy="5" r="3.33333"/>
+      <line x1="5" y1="8.33333" x2="5" y2="11.66666"/>
+      <line x1="3.33333" y1="10" x2="6.66667" y2="10"/>
+    </g>
+    <g id="bowtie">
+      <path d="M5,5 L10,7.5 V2.5 Z"/>
+      <path d="M5,5 L0,7.5 V2.5 Z"/>
+    </g>
+    <g id="ibeam" hollow="true">
+      <line x1="2.5" y1="0" x2="7.5" y2="0"/>
+      <line x1="5" y1="0" x2="5" y2="10"/>
+      <line x1="2.5" y1="10" x2="7.5" y2="10"/>
+    </g>
+    <g id="roundRectangle">
+      <rect x="0" y="0" width="10" height="10" rx="2.5" ry="2.5"/>
+    </g>
+
+    <!--
+        These flowers can be regenerated with the following Python program:
+
+        #! /usr/bin/env python
+        from math import sin, cos, pi
+
+        for n in range(3, 11):
+            print(f'    <g id="flower{n}" hollow="true">')
+            for i in range(n):
+                d = pi * 2 * i / n
+                x = 5 + 5 * sin(d)
+                y = 5 - 5 * cos(d)
+                print(f'        <line x1="5" y1="5" x2="{x}" y2="{y}"/>')
+            print("    </g>")
+    -->
+
+    <g id="flower3" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="9.330127018922195" y2="7.499999999999999"/>
+        <line x1="5" y1="5" x2="0.6698729810778081" y2="7.500000000000002"/>
+    </g>
+    <g id="flower4" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="10.0" y2="5.0"/>
+        <line x1="5" y1="5" x2="5.000000000000001" y2="10.0"/>
+        <line x1="5" y1="5" x2="0.0" y2="5.000000000000001"/>
+    </g>
+    <g id="flower5" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="9.755282581475768" y2="3.4549150281252627"/>
+        <line x1="5" y1="5" x2="7.938926261462367" y2="9.045084971874736"/>
+        <line x1="5" y1="5" x2="2.061073738537635" y2="9.045084971874738"/>
+        <line x1="5" y1="5" x2="0.2447174185242318" y2="3.4549150281252636"/>
+    </g>
+    <g id="flower6" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="9.330127018922193" y2="2.4999999999999996"/>
+        <line x1="5" y1="5" x2="9.330127018922195" y2="7.499999999999999"/>
+        <line x1="5" y1="5" x2="5.000000000000001" y2="10.0"/>
+        <line x1="5" y1="5" x2="0.6698729810778081" y2="7.500000000000002"/>
+        <line x1="5" y1="5" x2="0.6698729810778072" y2="2.4999999999999996"/>
+    </g>
+    <g id="flower7" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="8.90915741234015" y2="1.8825509907063323"/>
+        <line x1="5" y1="5" x2="9.874639560909118" y2="6.112604669781572"/>
+        <line x1="5" y1="5" x2="7.169418695587791" y2="9.504844339512095"/>
+        <line x1="5" y1="5" x2="2.83058130441221" y2="9.504844339512097"/>
+        <line x1="5" y1="5" x2="0.12536043909088157" y2="6.1126046697815735"/>
+        <line x1="5" y1="5" x2="1.0908425876598504" y2="1.8825509907063331"/>
+    </g>
+    <g id="flower8" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="8.535533905932738" y2="1.4644660940672622"/>
+        <line x1="5" y1="5" x2="10.0" y2="5.0"/>
+        <line x1="5" y1="5" x2="8.535533905932738" y2="8.535533905932738"/>
+        <line x1="5" y1="5" x2="5.000000000000001" y2="10.0"/>
+        <line x1="5" y1="5" x2="1.4644660940672627" y2="8.535533905932738"/>
+        <line x1="5" y1="5" x2="0.0" y2="5.000000000000001"/>
+        <line x1="5" y1="5" x2="1.4644660940672614" y2="1.4644660940672631"/>
+    </g>
+    <g id="flower9" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="8.213938048432697" y2="1.16977778440511"/>
+        <line x1="5" y1="5" x2="9.92403876506104" y2="4.131759111665348"/>
+        <line x1="5" y1="5" x2="9.330127018922195" y2="7.499999999999999"/>
+        <line x1="5" y1="5" x2="6.710100716628345" y2="9.69846310392954"/>
+        <line x1="5" y1="5" x2="3.289899283371657" y2="9.698463103929543"/>
+        <line x1="5" y1="5" x2="0.6698729810778081" y2="7.500000000000002"/>
+        <line x1="5" y1="5" x2="0.07596123493895934" y2="4.1317591116653505"/>
+        <line x1="5" y1="5" x2="1.786061951567302" y2="1.169777784405111"/>
+    </g>
+    <g id="flower10" hollow="true">
+        <line x1="5" y1="5" x2="5.0" y2="0.0"/>
+        <line x1="5" y1="5" x2="7.938926261462366" y2="0.9549150281252627"/>
+        <line x1="5" y1="5" x2="9.755282581475768" y2="3.4549150281252627"/>
+        <line x1="5" y1="5" x2="9.755282581475768" y2="6.545084971874736"/>
+        <line x1="5" y1="5" x2="7.938926261462367" y2="9.045084971874736"/>
+        <line x1="5" y1="5" x2="5.000000000000001" y2="10.0"/>
+        <line x1="5" y1="5" x2="2.061073738537635" y2="9.045084971874738"/>
+        <line x1="5" y1="5" x2="0.24471741852423268" y2="6.545084971874738"/>
+        <line x1="5" y1="5" x2="0.2447174185242318" y2="3.4549150281252636"/>
+        <line x1="5" y1="5" x2="2.061073738537633" y2="0.9549150281252636"/>
+    </g>
+
+    <!--
+        These polygons can be regenerated with the following Python program:
+
+         #! /usr/bin/env python
+         from math import sin, cos, pi
+
+         for n, name in (
+                 (3, "triangle"),
+                 (5, "pentagon"),
+                 (6, "hexagon"),
+                 (7, "heptagon"),
+                 (8, "octagon"),
+                 (9, "nonagon"),
+                 (10, "decagon"),
+         ):
+             points = []
+             for i in range(0, n + 1):
+                 d = i * 2 * pi / n
+                 points += [5 - 5 * sin(d), 5 - 5 * cos(d)]
+             print(f'    <g id="{name}">')
+             print(f'        <polygon points="{' '.join([str(p) for p in points])}"/>')
+             print("    </g>")
+    -->
+    <g id="triangle">
+        <polygon points="5.0 0.0 0.6698729810778064 7.499999999999999 9.330127018922191 7.500000000000002 5.000000000000001 0.0"/>
+    </g>
+    <g id="pentagon">
+        <polygon points="5.0 0.0 0.24471741852423268 3.4549150281252627 2.0610737385376336 9.045084971874736 7.938926261462365 9.045084971874738 9.755282581475768 3.4549150281252636 5.000000000000001 0.0"/>
+    </g>
+    <g id="hexagon">
+        <polygon points="5.0 0.0 0.6698729810778072 2.4999999999999996 0.6698729810778064 7.499999999999999 4.999999999999999 10.0 9.330127018922191 7.500000000000002 9.330127018922193 2.4999999999999996 5.000000000000001 0.0"/>
+    </g>
+    <g id="heptagon">
+        <polygon points="5.0 0.0 1.0908425876598509 1.8825509907063323 0.12536043909088157 6.112604669781572 2.830581304412209 9.504844339512095 7.16941869558779 9.504844339512097 9.874639560909118 6.1126046697815735 8.90915741234015 1.8825509907063331 5.000000000000001 0.0"/>
+    </g>
+    <g id="octagon">
+        <polygon points="5.0 0.0 1.4644660940672627 1.4644660940672622 0.0 5.0 1.4644660940672622 8.535533905932738 4.999999999999999 10.0 8.535533905932738 8.535533905932738 10.0 5.000000000000001 8.535533905932738 1.4644660940672631 5.000000000000001 0.0"/>
+    </g>
+    <g id="nonagon">
+        <polygon points="5.0 0.0 1.7860619515673037 1.16977778440511 0.07596123493896023 4.131759111665348 0.6698729810778064 7.499999999999999 3.2898992833716556 9.69846310392954 6.710100716628343 9.698463103929543 9.330127018922191 7.500000000000002 9.924038765061042 4.1317591116653505 8.213938048432698 1.169777784405111 5.000000000000001 0.0"/>
+    </g>
+    <g id="decagon">
+        <polygon points="5.0 0.0 2.061073738537634 0.9549150281252627 0.24471741852423268 3.4549150281252627 0.2447174185242318 6.545084971874736 2.0610737385376336 9.045084971874736 4.999999999999999 10.0 7.938926261462365 9.045084971874738 9.755282581475768 6.545084971874738 9.755282581475768 3.4549150281252636 7.938926261462367 0.9549150281252636 5.000000000000001 0.0"/>
+    </g>
+
+    <!--
+        These polygons can be regenerated with the following Python program:
+
+        #! /usr/bin/env python
+        from math import sin, cos, pi
+
+        for n in range(3, 11):
+            points = []
+            for i in range(1, n + 1):
+                d = (i * 2 - 1) * pi / n
+                d2 = i * 2 * pi / n
+                points += [5 + 2 * sin(d), 5 - 2 * cos(d)]
+                points += [5 + 5 * sin(d2), 5 - 5 * cos(d2)]
+            print(f'    <g id="star{n}">')
+            print(f'        <polygon points="{' '.join([str(p) for p in points])}"/>')
+            print("    </g>")
+    -->
+    <g id="star3">
+        <polygon points="6.732050807568877 4.0 9.330127018922195 7.499999999999999 5.0 7.0 0.6698729810778081 7.500000000000002 3.267949192431123 4.0 4.999999999999999 0.0"/>
+    </g>
+    <g id="star4">
+        <polygon points="6.414213562373095 3.585786437626905 10.0 5.0 6.414213562373095 6.414213562373095 5.000000000000001 10.0 3.585786437626905 6.414213562373096 0.0 5.000000000000001 3.5857864376269046 3.585786437626905 4.999999999999999 0.0"/>
+    </g>
+    <g id="star5">
+        <polygon points="6.175570504584947 3.381966011250105 9.755282581475768 3.4549150281252627 6.902113032590307 5.618033988749895 7.938926261462367 9.045084971874736 5.0 7.0 2.061073738537635 9.045084971874738 3.0978869674096927 5.618033988749895 0.2447174185242318 3.4549150281252636 3.8244294954150533 3.381966011250105 4.999999999999999 0.0"/>
+    </g>
+    <g id="star6">
+        <polygon points="6.0 3.2679491924311224 9.330127018922193 2.4999999999999996 7.0 5.0 9.330127018922195 7.499999999999999 6.0 6.732050807568878 5.000000000000001 10.0 4.000000000000001 6.732050807568878 0.6698729810778081 7.500000000000002 3.0 5.0 0.6698729810778072 2.4999999999999996 3.999999999999999 3.2679491924311233 4.999999999999999 0.0"/>
+    </g>
+    <g id="star7">
+        <polygon points="5.867767478235116 3.198062264195162 8.90915741234015 1.8825509907063323 6.949855824363647 4.554958132087371 9.874639560909118 6.112604669781572 6.56366296493606 6.246979603717467 7.169418695587791 9.504844339512095 5.0 7.0 2.83058130441221 9.504844339512097 3.4363370350639406 6.246979603717468 0.12536043909088157 6.1126046697815735 3.050144175636352 4.554958132087373 1.0908425876598504 1.8825509907063331 4.132232521764885 3.198062264195161 4.999999999999999 0.0"/>
+    </g>
+    <g id="star8">
+        <polygon points="5.765366864730179 3.1522409349774265 8.535533905932738 1.4644660940672622 6.847759065022574 4.234633135269821 10.0 5.0 6.847759065022574 5.765366864730179 8.535533905932738 8.535533905932738 5.76536686473018 6.847759065022574 5.000000000000001 10.0 4.234633135269821 6.847759065022574 1.4644660940672627 8.535533905932738 3.152240934977427 5.765366864730181 0.0 5.000000000000001 3.152240934977427 4.23463313526982 1.4644660940672614 1.4644660940672631 4.234633135269819 3.152240934977427 4.999999999999999 0.0"/>
+    </g>
+    <g id="star9">
+        <polygon points="5.684040286651338 3.120614758428183 8.213938048432697 1.16977778440511 6.732050807568877 4.0 9.92403876506104 4.131759111665348 6.969615506024416 5.34729635533386 9.330127018922195 7.499999999999999 6.285575219373079 6.532088886237956 6.710100716628345 9.69846310392954 5.0 7.0 3.289899283371657 9.698463103929543 3.7144247806269224 6.532088886237957 0.6698729810778081 7.500000000000002 3.0303844939755837 5.347296355333861 0.07596123493895934 4.1317591116653505 3.267949192431122 4.000000000000002 1.786061951567302 1.169777784405111 4.315959713348663 3.120614758428183 4.999999999999999 0.0"/>
+    </g>
+    <g id="star10">
+        <polygon points="5.618033988749895 3.0978869674096927 7.938926261462366 0.9549150281252627 6.618033988749895 3.8244294954150537 9.755282581475768 3.4549150281252627 7.0 5.0 9.755282581475768 6.545084971874736 6.618033988749895 6.175570504584946 7.938926261462367 9.045084971874736 5.618033988749895 6.902113032590307 5.000000000000001 10.0 4.381966011250106 6.902113032590307 2.061073738537635 9.045084971874738 3.381966011250105 6.175570504584947 0.24471741852423268 6.545084971874738 3.0 5.0 0.2447174185242318 3.4549150281252636 3.381966011250105 3.824429495415054 2.061073738537633 0.9549150281252636 4.381966011250105 3.0978869674096927 4.999999999999999 0.0"/>
+    </g>
+  </defs>
+
+  <!-- A palette of symbols. -->
+  <use x="2" y="2" transform="scale(5)" stroke="black" fill="red" href="#square"/>
+  <use x="14" y="2" transform="scale(5)" stroke="black" fill="red" href="#plus"/>
+  <use x="26" y="2" transform="scale(5)" stroke="black" fill="red" href="#circle"/>
+  <use x="38" y="2" transform="scale(5)" stroke="black" fill="red" href="#arc"/>
+  <use x="50" y="2" transform="scale(5)" stroke="black" fill="red" href="#arcDown"/>
+  <use x="62" y="2" transform="scale(5)" stroke="black" fill="red" href="#cross"/>
+  <use x="2" y="14" transform="scale(5)" stroke="black" fill="red" href="#arrow"/>
+  <use x="14" y="14" transform="scale(5)" stroke="black" fill="red" href="#line"/>
+  <use x="26" y="14" transform="scale(5)" stroke="black" fill="red" href="#male"/>
+  <use x="38" y="14" transform="scale(5)" stroke="black" fill="red" href="#female"/>
+  <use x="50" y="14" transform="scale(5)" stroke="black" fill="red" href="#bowtie"/>
+  <use x="62" y="14" transform="scale(5)" stroke="black" fill="red" href="#ibeam"/>
+  <use x="2" y="26" transform="scale(5)" stroke="black" fill="red" href="#roundRectangle"/>
+  <use x="14" y="26" transform="scale(5)" stroke="black" fill="red" href="#flower3"/>
+  <use x="26" y="26" transform="scale(5)" stroke="black" fill="red" href="#flower4"/>
+  <use x="38" y="26" transform="scale(5)" stroke="black" fill="red" href="#flower5"/>
+  <use x="50" y="26" transform="scale(5)" stroke="black" fill="red" href="#flower6"/>
+  <use x="62" y="26" transform="scale(5)" stroke="black" fill="red" href="#flower7"/>
+  <use x="2" y="38" transform="scale(5)" stroke="black" fill="red" href="#flower8"/>
+  <use x="14" y="38" transform="scale(5)" stroke="black" fill="red" href="#flower9"/>
+  <use x="26" y="38" transform="scale(5)" stroke="black" fill="red" href="#flower10"/>
+  <use x="38" y="38" transform="scale(5)" stroke="black" fill="red" href="#triangle"/>
+  <use x="50" y="38" transform="scale(5)" stroke="black" fill="red" href="#pentagon"/>
+  <use x="62" y="38" transform="scale(5)" stroke="black" fill="red" href="#hexagon"/>
+  <use x="2" y="50" transform="scale(5)" stroke="black" fill="red" href="#heptagon"/>
+  <use x="14" y="50" transform="scale(5)" stroke="black" fill="red" href="#octagon"/>
+  <use x="26" y="50" transform="scale(5)" stroke="black" fill="red" href="#nonagon"/>
+  <use x="38" y="50" transform="scale(5)" stroke="black" fill="red" href="#decagon"/>
+  <use x="50" y="50" transform="scale(5)" stroke="black" fill="red" href="#star3"/>
+  <use x="62" y="50" transform="scale(5)" stroke="black" fill="red" href="#star4"/>
+  <use x="2" y="62" transform="scale(5)" stroke="black" fill="red" href="#star5"/>
+  <use x="14" y="62" transform="scale(5)" stroke="black" fill="red" href="#star6"/>
+  <use x="26" y="62" transform="scale(5)" stroke="black" fill="red" href="#star7"/>
+  <use x="38" y="62" transform="scale(5)" stroke="black" fill="red" href="#star8"/>
+  <use x="50" y="62" transform="scale(5)" stroke="black" fill="red" href="#star9"/>
+  <use x="62" y="62" transform="scale(5)" stroke="black" fill="red" href="#star10"/>
+</svg>
-- 
2.47.3