Exploring the advanced features of OpenOffice Draw for improved geometry analysis

Struggling with the draw:enhanced-geometry section that involves draw:enhanced-path and draw:equation. I'm working on an OOo converter but can't seem to find any concrete solutions or extensive documentation about this part. Any suggestions on how to approach it?

The following is a snippet of the code that has me stuck (drawing a balloon):

"draw:enhanced-geometry": [{
    "$": {
        "svg:viewBox": "0 0 21600 21600",
        "draw:text-areas": "800 800 20800 20800",
        "draw:type": "round-rectangular-callout",
        "draw:modifiers": "3289.58566629339 27438.6415787058",
        "draw:enhanced-path": "M 3590 0 X 0 3590 L ?f2 ?f3 0 8970 0 12630 ?f4 ?f5 0 18010 Y 3590 21600 L ?f6 ?f7 8970 21600 12630 21600 ?f8 ?f9 18010 21600 X 21600 18010 L ?f10 ?f11 21600 12630 21600 8970 ?f12 ?f13 21600 3590 Y 18010 0 L ?f14 ?f15 12630 0 8970 0 ?f16 ?f17 Z N"
    },
    "draw:equation": [
        {
            "$": {
                "draw:name": "f0",
                "draw:formula": "$0 -10800"
            }
        },
        ...
        // Remaining equations have been omitted for brevity
    ],
    "draw:handle": [{
        "$": {
            "draw:handle-position": "$0 $1"
        }
    }]
}]
javascriptlibreoffice

Answer №1

draw:enhanced-path is typically inserted within the svg path element. The resulting code would look similar to this:

<svg viewBox="0 0 21600 21600" xmlns="http://www.w3.org/2000/svg" version="1.1">
  <path d="M 3590 0 X 0 3590 L ?f2 ?f3 0 8970 0 12630 ?f4 ?f5 0 18010 Y 3590 21600 L ?f6 ?f7 8970 21600 12630 21600 ?f8 ?f9 18010 21600 X 21600 18010 L ?f10 ?f11 21600 12630 21600 8970 ?f12 ?f13 21600 3590 Y 18010 0 L ?f14 ?f15 12630 0 8970 0 ?f16 ?f17 Z N"/>
</svg>

It is important to expand all variables (such as ?f2) and arguments (like $0), as shown in the code snippet below. However, there may be uncertainty regarding how to handle the 'X' and 'Y' literals within the path, as they are not clearly defined in the SVG documentation here.

function extractPath(dataObj, args) {
// function logic goes here
}

function onLoad() {
// function logic for loading goes here
}
< body onload="onLoad()" >
< svg xmlns="http://www.w3.org/2000/svg" version="1.1" />
< /body >

This information provided above should serve as a useful reference point.

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