Line height

multiline.png

multiline.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Map>
<Map>
    <Style name="multi">
        <Rule>
            <LineSymbolizer stroke="red" />
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="green"
                >"Multi\nline\nText"</TextSymbolizer>
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="blue"
                >"oooo\nxxx\naaaa"</TextSymbolizer>
        </Rule>
    </Style>
    <Layer name="layer">
        <StyleName>multi</StyleName>
        <Datasource>
            <Parameter name="type">csv</Parameter>
            <Parameter name="inline">
            wkt, placement
            "LINESTRING(0 1, 10 1)", "vertex-first"
            "LINESTRING(0 2, 2 3, 4 2, 6 3, 8 2, 10 3)", "vertex-first"
            </Parameter>
        </Datasource>
    </Layer>
</Map>

out.png

style.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Map>
<Map>
    <Style name="lines">
        <Rule>
            <LineSymbolizer stroke="red" />
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="green"
                >"prague"</TextSymbolizer>
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="blue"
                >"Prague"</TextSymbolizer>
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="black"
                >"ova"</TextSymbolizer>
            <TextSymbolizer
                face-name="DejaVu Sans Book"
                size="16"
                placement="line"
                max-char-angle-delta="0"
                spacing="50"
                vertical-alignment="bottom"
                allow-overlap="true"
                fill="orange"
                >"Úsvit"</TextSymbolizer>
        </Rule>
    </Style>
    <Layer name="layer">
        <StyleName>lines</StyleName>
        <Datasource>
            <Parameter name="type">csv</Parameter>
            <Parameter name="inline">
            wkt, placement
            "LINESTRING(0 1, 10 1)", "vertex-first"
            "LINESTRING(0 2, 2 3, 4 2, 6 3, 8 2, 10 3)", "vertex-first"
            </Parameter>
        </Datasource>
    </Layer>
</Map>