> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/developers/paramml-developer-guide/core-objects/cad-objects/dimensionline-object.md).

# DimensionLine Object

The "Dimension3D" Object is used to display measurements on 3D objects. The FontSize parameter sets the font size of the text, while the ArrowSize parameter sets the size of the arrows. Three points are defined in the object to represent the start and end points of the measurement and the center point where the dimension text will be displayed. This allows users to view the dimensions of the 3D objects in an easily understandable way.

**Example:**

```xml
<O N="CadObject14" T="Project" Category="CAD Object" TransAlignRule="Right">
    <!-- created by ParamML Examples on 03.02.2023 -->
    <O N="Inputs" T="Group">
        <P N="lox" V="10" D="column width" Role="Input" Category="Input" />
        <P N="loy" V="10" D="column width" Role="Input" Category="Input" />
        <P N="loz" V="10" D="column width" Role="Input" Category="Input" />
        <P N="W" V="60" D="column width" Role="Input" Category="Input" />
        <P N="L" V="20" D="column length" Role="Input" Category="Input" />
        <P N="H" V="10" D="column height" Role="Input" Category="Input" />
    </O>
    <O N="Column3D" T="Surface">
        <P N="Thickness" V="H" />
        <O T="Point" X="-W/2" Y="-L/2" />
        <O T="Point" X="W/2" Y="-L/2" />
        <O T="Point" X="W/2" Y="L/2" />
        <O T="Point" X="-W/2" Y="L/2" />
    </O>
    <O N="DIMGroup" T="Group">
        <O T="DimensionLine" FontSize="2.5" ArrowSize="1.7">
            <O T="Point" Z="0" Y="L/2" X="-W/2" />
            <O T="Point" Z="H" Y="L/2" X="-W/2" />
            <O T="Point" Z="H/2" Y="L" X="-W/2" />
        </O>
        <O T="DimensionLine" FontSize="2.5" ArrowSize="1.7">
            <O T="Point" Z="H" Y="L/2" X="-W/2" />
            <O T="Point" Z="H" Y="L/2" X="W/2" />
            <O T="Point" Z="H" Y="L" X="W/4" />
        </O>
        <O T="DimensionLine" FontSize="2.5" ArrowSize="1.7">
            <O T="Point" Z="H" Y="L/2" X="W/2" />
            <O T="Point" Z="H" Y="-L/2" X="W/2" />
            <O T="Point" Z="H" Y="L/4" X="W-L" />
        </O>
    </O>
</O>
```

![](https://openbrim.atlassian.net/wiki/download/attachments/2158493880/image-20230203-134800.png?api=v2) To view this example in the library, see (<https://openbrim.org/platform/?application=inc&author=ParamML_Examples_OpenBrIM+Platform&folder=CAD+Object&obj=objid5w1bs893qd3u77bq5z0u8l>)

**Example:**

```xml
<O N="CadObject15" T="Project" Category="CAD Object" TransAlignRule="Right">
    <!-- created by ParamML Examples on 03.02.2023 -->
    <O N="Input" T="Group">
        <P N="W" V="15" D="column width" Role="Input" Category="Input" />
        <P N="L" V="25" D="column length" Role="Input" Category="Input" />
        <P N="H" V="50" D="column height" Role="Input" Category="Input" />
    </O>
    <O T="Volume">
        <O T="Surface">
            <O T="Point" X="-L" Y="-W" />
            <O T="Point" X="L" Y="-W" />
            <O T="Point" X="L" Y="W" />
            <O T="Point" X="-L" Y="W" />
        </O>
        <O T="Surface" Z="H">
            <O T="Point" X="-L/2" Y="-W/2" />
            <O T="Point" X="L/2" Y="-W/2" />
            <O T="Point" X="L/2" Y="W/2" />
            <O T="Point" X="-L/2" Y="W/2" />
        </O>
    </O>
    <O N="DIMGroup" T="Group">
        <O T="DimensionLine" FontSize="4" ArrowSize="1.7">
            <O T="Point" Z="0" Y="L/2" X="-L/2" />
            <O T="Point" Z="H" Y="L/2" X="-L/2" />
            <O T="Point" Z="H/2" Y="W/2 + L/2" X="-L/2" />
        </O>
        <O T="DimensionLine" FontSize="4" ArrowSize="1.7">
            <O T="Point" Z="H" Y="W/2" X="-L/2" />
            <O T="Point" Z="H" Y="W/2" X="L/2" />
            <O T="Point" Z="H" Y="W/2 +L/2" X="L/4" />
        </O>
        <O T="DimensionLine" FontSize="4" ArrowSize="1.7">
            <O T="Point" Z="H" Y="W/2" X="L/2" />
            <O T="Point" Z="H" Y="-W/2" X="L/2" />
            <O T="Point" Z="H" Y="W/4" X="L/3 + L/2" />
        </O>
    </O>
</O>
```

![](https://openbrim.atlassian.net/wiki/download/attachments/2158493880/image-20230203-141553.png?api=v2) To view this example in the library, see (<https://openbrim.org/platform/?application=inc&author=ParamML_Examples_OpenBrIM+Platform&folder=CAD+Object&obj=objid53ylr9lpa545ypamr59d06>)


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