From: Benjamin Auder <benjamin.auder@somewhere> Date: Wed, 24 Jan 2018 23:16:20 +0000 (+0100) Subject: Fix README, separate example.svg (doesn't work inline) X-Git-Url: https://git.auder.net/variants/img/current/assets/DESCRIPTION?a=commitdiff_plain;h=fe021b27455df1f9cd8392b2bba235029c567dec;p=erdiag.git Fix README, separate example.svg (doesn't work inline) --- diff --git a/README.md b/README.md index d9cf9fd..93b1314 100644 --- a/README.md +++ b/README.md @@ -11,124 +11,48 @@ At least the former is planned, and also probably a way to indicate relative ide ----- An entity is defined as follow + [Entity] #attr1 (*) attr2 (*) + with (\*) = optional SQL indications, and # denoting a (part of) a key. A relationship is defined in this way + {Relation} Entity C1 Entity2 C2 -- attr1 (*) attr2 (*) + where attributes are optional, and C1 (resp. C2) = cardinality for entity 1 (resp. 2). Defining relationships with more than two attributes is easy: just add entities. Cardinality dictionary: * \* = 0..n - * + = 1..n + * \+ = 1..n * 1 = 1..1 * ? = 0..1 To mark a weak entity, just surround its name by extra-brackets + [[WeakEntity]] + In the same way, a weak relation can be written + {{WeakRelation}} + The syntax for these two last is then the same as in the non-weak versions. To indicate an inheritance relation, proceed as follow + is_a Animal Cat Fish Planet Mars Venus -Finally, blocks must be separated by new lines. For a usage example, see example.html +Finally, blocks must be separated by new lines. For a usage example, see example.html (it should render as seen in example.svg) Note that the "drawMcd" method can take a second argument, which indicates the type of graph. * "bubble" draws the standard graph, as seen [here](https://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model#/media/File:ER_Diagram_MMORPG.png) for example * "compact" (default) use the same box for an entity and its attributes - ------ - -Here is how the example file should render: - -<svg width="316pt" height="327pt" viewBox="0.00 0.00 316.05 327.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> -<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 323)"> -<title>%3</title> -<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-323 312.0467,-323 312.0467,4 -4,4"></polygon> -<g id="node1" class="node"> -<title>Musician</title> -<polygon fill="#ae7d4e" stroke="transparent" points="9,-191.5 9,-216.5 81,-216.5 81,-191.5 9,-191.5"></polygon> -<text text-anchor="start" x="14" y="-200.3" font-family="Roboto" font-size="14.00" fill="#ffffff">Musician</text> -<polygon fill="#ffffff" stroke="transparent" points="9,-166.5 9,-191.5 81,-191.5 81,-166.5 9,-166.5"></polygon> -<text text-anchor="start" x="14" y="-176.3" font-family="Roboto" text-decoration="underline" font-size="14.00" fill="#000000">id</text> -<polygon fill="#ffffff" stroke="transparent" points="9,-141.5 9,-166.5 81,-166.5 81,-141.5 9,-141.5"></polygon> -<text text-anchor="start" x="14" y="-150.3" font-family="Roboto" font-size="14.00" fill="#000000">name</text> -<polygon fill="#ffffff" stroke="transparent" points="9,-116.5 9,-141.5 81,-141.5 81,-116.5 9,-116.5"></polygon> -<text text-anchor="start" x="14" y="-125.3" font-family="Roboto" font-size="14.00" fill="#000000">band</text> -<polygon fill="#ffffff" stroke="transparent" points="9,-91.5 9,-116.5 81,-116.5 81,-91.5 9,-91.5"></polygon> -<text text-anchor="start" x="14" y="-100.3" font-family="Roboto" font-size="14.00" fill="#000000">role</text> -<polygon fill="none" stroke="#000000" points="8,-91 8,-218 82,-218 82,-91 8,-91"></polygon> -</g> -<g id="node5" class="node"> -<title>Play</title> -<polygon fill="#d3d3d3" stroke="#d3d3d3" points="162,-36 119.9364,-18 162,0 204.0636,-18 162,-36"></polygon> -<text text-anchor="middle" x="162" y="-14.3" font-family="Roboto" font-size="14.00" fill="#000000">Play</text> -</g> -<g id="edge3" class="edge"> -<title>Musician:name--Play</title> -<path fill="none" stroke="#000000" d="M82.084,-107.3354C87.6808,-100.4547 93.4413,-93.5019 99,-87 116.0765,-67.0262 136.769,-44.7006 149.6627,-30.9982"></path> -<text text-anchor="middle" x="139.5" y="-57.8" font-family="Roboto" font-size="14.00" fill="#000000">1,n</text> -</g> -<g id="node2" class="node"> -<title>Instrument</title> -<polygon fill="#ae7d4e" stroke="transparent" points="118,-166.5 118,-191.5 207,-191.5 207,-166.5 118,-166.5"></polygon> -<text text-anchor="start" x="123" y="-175.3" font-family="Roboto" font-size="14.00" fill="#ffffff">Instrument</text> -<polygon fill="#ffffff" stroke="transparent" points="118,-141.5 118,-166.5 207,-166.5 207,-141.5 118,-141.5"></polygon> -<text text-anchor="start" x="123" y="-151.3" font-family="Roboto" text-decoration="underline" font-size="14.00" fill="#000000">name</text> -<polygon fill="#ffffff" stroke="transparent" points="118,-116.5 118,-141.5 207,-141.5 207,-116.5 118,-116.5"></polygon> -<text text-anchor="start" x="123" y="-125.3" font-family="Roboto" font-size="14.00" fill="#000000">family</text> -<polygon fill="none" stroke="#000000" points="116.5,-116 116.5,-193 207.5,-193 207.5,-116 116.5,-116"></polygon> -</g> -<g id="edge4" class="edge"> -<title>Instrument:name--Play</title> -<path fill="none" stroke="#000000" d="M162,-115.7497C162,-89.5818 162,-56.2494 162,-36.0469"></path> -<text text-anchor="middle" x="173.5" y="-57.8" font-family="Roboto" font-size="14.00" fill="#000000">0,n</text> -</g> -<g id="node3" class="node"> -<title>Piano</title> -<polygon fill="#ae7d4e" stroke="transparent" points="92,-289 92,-314 142,-314 142,-289 92,-289"></polygon> -<text text-anchor="start" x="97" y="-297.8" font-family="Roboto" font-size="14.00" fill="#ffffff">Piano</text> -<polygon fill="#ffffff" stroke="transparent" points="92,-264 92,-289 142,-289 142,-264 92,-264"></polygon> -<text text-anchor="start" x="97" y="-272.8" font-family="Roboto" font-size="14.00" fill="#000000">type</text> -<polygon fill="none" stroke="#000000" points="91,-263 91,-315 143,-315 143,-263 91,-263"></polygon> -</g> -<g id="edge1" class="edge"> -<title>Piano:name--Instrument:name</title> -<path fill="none" stroke="#000000" stroke-dasharray="5,2" d="M125.7833,-262.7478C131.4763,-245.7319 139.064,-223.0533 145.823,-202.8511"></path> -<polygon fill="#000000" stroke="#000000" points="149.0627,-193.1683 150.1572,-204.0794 147.4762,-197.9099 145.8897,-202.6516 145.8897,-202.6516 145.8897,-202.6516 147.4762,-197.9099 141.6222,-201.2238 149.0627,-193.1683 149.0627,-193.1683"></polygon> -</g> -<g id="node4" class="node"> -<title>Guitar</title> -<polygon fill="#ae7d4e" stroke="transparent" points="179,-289 179,-314 234,-314 234,-289 179,-289"></polygon> -<text text-anchor="start" x="184" y="-297.8" font-family="Roboto" font-size="14.00" fill="#ffffff">Guitar</text> -<polygon fill="#ffffff" stroke="transparent" points="179,-264 179,-289 234,-289 234,-264 179,-264"></polygon> -<text text-anchor="start" x="184" y="-272.8" font-family="Roboto" font-size="14.00" fill="#000000">type</text> -<polygon fill="none" stroke="#000000" points="177.5,-263 177.5,-315 234.5,-315 234.5,-263 177.5,-263"></polygon> -</g> -<g id="edge2" class="edge"> -<title>Guitar:name--Instrument:name</title> -<path fill="none" stroke="#000000" stroke-dasharray="5,2" d="M197.4119,-262.7478C191.8454,-245.7319 184.4263,-223.0533 177.8175,-202.8511"></path> -<polygon fill="#000000" stroke="#000000" points="174.6499,-193.1683 182.0361,-201.2735 176.2045,-197.9205 177.7591,-202.6726 177.7591,-202.6726 177.7591,-202.6726 176.2045,-197.9205 173.4822,-204.0718 174.6499,-193.1683 174.6499,-193.1683"></polygon> -</g> -<g id="node6" class="node"> -<title>Play_event</title> -<ellipse fill="none" stroke="#000000" cx="271" cy="-154.5" rx="37.0935" ry="18"></ellipse> -<text text-anchor="middle" x="271" y="-150.8" font-family="Roboto" font-size="14.00" fill="#000000">event</text> -</g> -<g id="edge5" class="edge"> -<title>Play_event--Play</title> -<path fill="none" stroke="#000000" d="M259.7846,-137.157C250.5992,-123.2662 237.0373,-103.4517 224,-87 207.7962,-66.5524 187.2723,-44.3526 174.3848,-30.8066"></path> -</g> -</g> -</svg> diff --git a/example.svg b/example.svg new file mode 100644 index 0000000..bf81b87 --- /dev/null +++ b/example.svg @@ -0,0 +1,96 @@ +<!--?xml version="1.0" encoding="UTF-8" standalone="no"?--> + +<!-- Generated by graphviz version 2.40.1 (20161225.0304) + --> +<!-- Title: %3 Pages: 1 --> +<svg width="316pt" height="327pt" viewBox="0.00 0.00 316.05 327.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> +<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 323)"> +<title>%3</title> +<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-323 312.0467,-323 312.0467,4 -4,4"></polygon> +<!-- Musician --> +<g id="node1" class="node"> +<title>Musician</title> +<polygon fill="#ae7d4e" stroke="transparent" points="9,-191.5 9,-216.5 81,-216.5 81,-191.5 9,-191.5"></polygon> +<text text-anchor="start" x="14" y="-200.3" font-family="Roboto" font-size="14.00" fill="#ffffff">Musician</text> +<polygon fill="#ffffff" stroke="transparent" points="9,-166.5 9,-191.5 81,-191.5 81,-166.5 9,-166.5"></polygon> +<text text-anchor="start" x="14" y="-176.3" font-family="Roboto" text-decoration="underline" font-size="14.00" fill="#000000">id</text> +<polygon fill="#ffffff" stroke="transparent" points="9,-141.5 9,-166.5 81,-166.5 81,-141.5 9,-141.5"></polygon> +<text text-anchor="start" x="14" y="-150.3" font-family="Roboto" font-size="14.00" fill="#000000">name</text> +<polygon fill="#ffffff" stroke="transparent" points="9,-116.5 9,-141.5 81,-141.5 81,-116.5 9,-116.5"></polygon> +<text text-anchor="start" x="14" y="-125.3" font-family="Roboto" font-size="14.00" fill="#000000">band</text> +<polygon fill="#ffffff" stroke="transparent" points="9,-91.5 9,-116.5 81,-116.5 81,-91.5 9,-91.5"></polygon> +<text text-anchor="start" x="14" y="-100.3" font-family="Roboto" font-size="14.00" fill="#000000">role</text> +<polygon fill="none" stroke="#000000" points="8,-91 8,-218 82,-218 82,-91 8,-91"></polygon> +</g> +<!-- Play --> +<g id="node5" class="node"> +<title>Play</title> +<polygon fill="#d3d3d3" stroke="#d3d3d3" points="162,-36 119.9364,-18 162,0 204.0636,-18 162,-36"></polygon> +<text text-anchor="middle" x="162" y="-14.3" font-family="Roboto" font-size="14.00" fill="#000000">Play</text> +</g> +<!-- Musician--Play --> +<g id="edge3" class="edge"> +<title>Musician:name--Play</title> +<path fill="none" stroke="#000000" d="M82.084,-107.3354C87.6808,-100.4547 93.4413,-93.5019 99,-87 116.0765,-67.0262 136.769,-44.7006 149.6627,-30.9982"></path> +<text text-anchor="middle" x="139.5" y="-57.8" font-family="Roboto" font-size="14.00" fill="#000000">1,n</text> +</g> +<!-- Instrument --> +<g id="node2" class="node"> +<title>Instrument</title> +<polygon fill="#ae7d4e" stroke="transparent" points="118,-166.5 118,-191.5 207,-191.5 207,-166.5 118,-166.5"></polygon> +<text text-anchor="start" x="123" y="-175.3" font-family="Roboto" font-size="14.00" fill="#ffffff">Instrument</text> +<polygon fill="#ffffff" stroke="transparent" points="118,-141.5 118,-166.5 207,-166.5 207,-141.5 118,-141.5"></polygon> +<text text-anchor="start" x="123" y="-151.3" font-family="Roboto" text-decoration="underline" font-size="14.00" fill="#000000">name</text> +<polygon fill="#ffffff" stroke="transparent" points="118,-116.5 118,-141.5 207,-141.5 207,-116.5 118,-116.5"></polygon> +<text text-anchor="start" x="123" y="-125.3" font-family="Roboto" font-size="14.00" fill="#000000">family</text> +<polygon fill="none" stroke="#000000" points="116.5,-116 116.5,-193 207.5,-193 207.5,-116 116.5,-116"></polygon> +</g> +<!-- Instrument--Play --> +<g id="edge4" class="edge"> +<title>Instrument:name--Play</title> +<path fill="none" stroke="#000000" d="M162,-115.7497C162,-89.5818 162,-56.2494 162,-36.0469"></path> +<text text-anchor="middle" x="173.5" y="-57.8" font-family="Roboto" font-size="14.00" fill="#000000">0,n</text> +</g> +<!-- Piano --> +<g id="node3" class="node"> +<title>Piano</title> +<polygon fill="#ae7d4e" stroke="transparent" points="92,-289 92,-314 142,-314 142,-289 92,-289"></polygon> +<text text-anchor="start" x="97" y="-297.8" font-family="Roboto" font-size="14.00" fill="#ffffff">Piano</text> +<polygon fill="#ffffff" stroke="transparent" points="92,-264 92,-289 142,-289 142,-264 92,-264"></polygon> +<text text-anchor="start" x="97" y="-272.8" font-family="Roboto" font-size="14.00" fill="#000000">type</text> +<polygon fill="none" stroke="#000000" points="91,-263 91,-315 143,-315 143,-263 91,-263"></polygon> +</g> +<!-- Piano--Instrument --> +<g id="edge1" class="edge"> +<title>Piano:name--Instrument:name</title> +<path fill="none" stroke="#000000" stroke-dasharray="5,2" d="M125.7833,-262.7478C131.4763,-245.7319 139.064,-223.0533 145.823,-202.8511"></path> +<polygon fill="#000000" stroke="#000000" points="149.0627,-193.1683 150.1572,-204.0794 147.4762,-197.9099 145.8897,-202.6516 145.8897,-202.6516 145.8897,-202.6516 147.4762,-197.9099 141.6222,-201.2238 149.0627,-193.1683 149.0627,-193.1683"></polygon> +</g> +<!-- Guitar --> +<g id="node4" class="node"> +<title>Guitar</title> +<polygon fill="#ae7d4e" stroke="transparent" points="179,-289 179,-314 234,-314 234,-289 179,-289"></polygon> +<text text-anchor="start" x="184" y="-297.8" font-family="Roboto" font-size="14.00" fill="#ffffff">Guitar</text> +<polygon fill="#ffffff" stroke="transparent" points="179,-264 179,-289 234,-289 234,-264 179,-264"></polygon> +<text text-anchor="start" x="184" y="-272.8" font-family="Roboto" font-size="14.00" fill="#000000">type</text> +<polygon fill="none" stroke="#000000" points="177.5,-263 177.5,-315 234.5,-315 234.5,-263 177.5,-263"></polygon> +</g> +<!-- Guitar--Instrument --> +<g id="edge2" class="edge"> +<title>Guitar:name--Instrument:name</title> +<path fill="none" stroke="#000000" stroke-dasharray="5,2" d="M197.4119,-262.7478C191.8454,-245.7319 184.4263,-223.0533 177.8175,-202.8511"></path> +<polygon fill="#000000" stroke="#000000" points="174.6499,-193.1683 182.0361,-201.2735 176.2045,-197.9205 177.7591,-202.6726 177.7591,-202.6726 177.7591,-202.6726 176.2045,-197.9205 173.4822,-204.0718 174.6499,-193.1683 174.6499,-193.1683"></polygon> +</g> +<!-- Play_event --> +<g id="node6" class="node"> +<title>Play_event</title> +<ellipse fill="none" stroke="#000000" cx="271" cy="-154.5" rx="37.0935" ry="18"></ellipse> +<text text-anchor="middle" x="271" y="-150.8" font-family="Roboto" font-size="14.00" fill="#000000">event</text> +</g> +<!-- Play_event--Play --> +<g id="edge5" class="edge"> +<title>Play_event--Play</title> +<path fill="none" stroke="#000000" d="M259.7846,-137.157C250.5992,-123.2662 237.0373,-103.4517 224,-87 207.7962,-66.5524 187.2723,-44.3526 174.3848,-30.8066"></path> +</g> +</g> +</svg>