Solved: Re: Place object to the base of another

darioOrtisi · ‎09-27-2023

The question is more elaborated then the title.

I will like to create a plane(directly inside bifrostGraph) wich has the dimension of bounding box of another object and of course will be place at the bottom of the boundingBox(BBOX min in Y axis but will change the axis if needest)
Now i try in a horrible way. OK the plane is there at the origin it seem correct(look at my screenshot) The problem is that i will like to transfer the dimension to the plane(obviously is a plane so the XZ dimension in this case)
There is some example somewhere if anybody can helps?

Thanks

morten.bojsen-hansen · ‎10-02-2023

In the special case you have where the input geometry is aligned with the xz-plane, you can use the following approach (copy paste this into Bifrost Graph):

<sub_root>
    <nodes>
        <node>
            <vnnNode name="array_bounds" type="BifrostGraph,Core::Array,array_bounds" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>40.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>620 339</value>
    </metadata>
</metadatas>
    <ports>
        <port name="array" type="array&lt;Math::float3&gt;" flag="4096" is_input="yes"/>
        <port name="min_bound" type="Math::float3" flag="4096" is_input="no"/>
        <port name="max_bound" type="Math::float3" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="get_point_position" type="BifrostGraph,Geometry::Properties,get_point_position" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>100.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>315 464</value>
    </metadata>
</metadatas>
    <ports>
        <port name="geometry" type="Object" flag="0" is_input="yes"/>
        <port name="point_position" type="array&lt;Math::float3&gt;" flag="0" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="create_mesh_cylinder" type="BifrostGraph,Modeling::Primitive,create_mesh_cylinder" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>101.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>10 586</value>
    </metadata>
    <metadata name="terminal_node_disabled_flags">
        <value>[
]
</value>
    </metadata>
</metadatas>
    <ports>
        <port name="axis_segments" type="int" flag="0" is_input="yes" default_values="20"/>
        <port name="height_segments" type="int" flag="0" is_input="yes" default_values="4"/>
        <port name="bottom_cap" type="bool" flag="0" is_input="yes" default_values="1"/>
        <port name="top_cap" type="bool" flag="0" is_input="yes" default_values="1"/>
        <port name="radius" type="float" flag="0" is_input="yes" default_values="1"/>
        <port name="height" type="float" flag="0" is_input="yes" default_values="1"/>
        <port name="create_UVs" type="bool" flag="0" is_input="yes" default_values="1"/>
        <port name="up_axis" type="Math::float3" flag="0" is_input="yes" default_values="0;1;0"/>
        <port name="position" type="Math::float3" flag="0" is_input="yes" default_values="0;0;0"/>
        <port name="base_to_pivot" type="bool" flag="0" is_input="yes" default_values="0"/>
        <port name="out_mesh" type="Object" flag="0" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="vector3_to_scalar1" type="BifrostGraph,Core::Conversion,vector3_to_scalar" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>81.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>925 158</value>
    </metadata>
</metadatas>
    <ports>
        <port name="vector3" type="Math::float3" flag="4096" is_input="yes"/>
        <port name="x" type="float" flag="4096" is_input="no"/>
        <port name="y" type="float" flag="4096" is_input="no"/>
        <port name="z" type="float" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="vector3_to_scalar" type="BifrostGraph,Core::Conversion,vector3_to_scalar" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>109.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>925 400</value>
    </metadata>
</metadatas>
    <ports>
        <port name="vector3" type="Math::float3" flag="4096" is_input="yes"/>
        <port name="x" type="float" flag="4096" is_input="no"/>
        <port name="y" type="float" flag="4096" is_input="no"/>
        <port name="z" type="float" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="subtract1" type="BifrostGraph,Core::Math,subtract" flag="2">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>98.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>1230 10</value>
    </metadata>
</metadatas>
    <ports>
        <port name="x" type="float" flag="4104" is_input="yes"/>
        <port name="x1" type="float" flag="4104" is_input="yes"/>
        <port name="output" type="float" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="scalar_to_vector3" type="BifrostGraph,Core::Conversion,scalar_to_vector3" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>120.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>1230 496</value>
    </metadata>
</metadatas>
    <ports>
        <port name="x" type="float" flag="4096" is_input="yes"/>
        <port name="y" type="float" flag="4096" is_input="yes"/>
        <port name="z" type="float" flag="4096" is_input="yes"/>
        <port name="vector3" type="Math::float3" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="subtract" type="BifrostGraph,Core::Math,subtract" flag="2">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>1230 253</value>
    </metadata>
    <metadata name="zValue">
        <value>126.000000</value>
    </metadata>
</metadatas>
    <ports>
        <port name="z" type="float" flag="4104" is_input="yes"/>
        <port name="z1" type="float" flag="4104" is_input="yes"/>
        <port name="output" type="float" flag="4096" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="create_mesh_plane" type="BifrostGraph,Modeling::Primitive,create_mesh_plane" flag="0">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>124.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>1535 270</value>
    </metadata>
    <propertylists>
        <propertylist name="PortExpandedState">
            <metadatas>
                <metadata name="Transform">
                    <value>1</value>
                </metadata>
                <metadata name="Geometry">
                    <value>0</value>
                </metadata>
                <metadata name="Dimensions">
                    <value>1</value>
                </metadata>
            </metadatas>
        </propertylist>
    </propertylists>
</metadatas>
    <ports>
        <port name="length" type="float" flag="0" is_input="yes" default_values="1">
            <metadatas>
                <metadata name="UiSoftMin" value="0"/>
            </metadatas>
        </port>
        <port name="width" type="float" flag="0" is_input="yes" default_values="1">
            <metadatas>
                <metadata name="UiSoftMin" value="0"/>
            </metadatas>
        </port>
        <port name="length_segments" type="int" flag="0" is_input="yes" default_values="10">
            <metadatas>
                <metadata name="UiSoftMin" value="1"/>
            </metadatas>
        </port>
        <port name="width_segments" type="int" flag="0" is_input="yes" default_values="10">
            <metadatas>
                <metadata name="UiSoftMin" value="1"/>
            </metadatas>
        </port>
        <port name="up_axis" type="Math::float3" flag="0" is_input="yes" default_values="0;1;0"/>
        <port name="position" type="Math::float3" flag="0" is_input="yes" default_values="0;0;0"/>
        <port name="plane_mesh" type="Object" flag="0" is_input="no"/>
    </ports>
</vnnNode>
        </node>
        <node>
            <vnnNode name="output" type="" flag="16">
    <metadatas>
    <metadata name="DisplayMode">
        <value>2</value>
    </metadata>
    <metadata name="zValue">
        <value>125.000000</value>
    </metadata>
    <metadata name="LayoutPos">
        <value>1783.91 670.571</value>
    </metadata>
</metadatas>
    <ports>
        <port name="plane_mesh" type="Object" flag="0" is_input="no">
            <metadatas>
                <metadata name="feedbackPort" value=""/>
            </metadatas>
        </port>
        <port name="out_mesh" type="Object" flag="0" is_input="no">
            <metadatas>
                <metadata name="feedbackPort" value=""/>
            </metadatas>
        </port>
    </ports>
</vnnNode>
        </node>
    </nodes>
    <connections>
        <connection output_port="array_bounds.min_bound" input_port="vector3_to_scalar.vector3"/>
        <connection output_port="array_bounds.max_bound" input_port="vector3_to_scalar1.vector3"/>
        <connection output_port="get_point_position.point_position" input_port="array_bounds.array"/>
        <connection output_port="create_mesh_cylinder.out_mesh" input_port="get_point_position.geometry"/>
        <connection output_port="vector3_to_scalar1.x" input_port="subtract1.x1"/>
        <connection output_port="vector3_to_scalar1.z" input_port="subtract.z"/>
        <connection output_port="vector3_to_scalar.x" input_port="subtract1.x"/>
        <connection output_port="vector3_to_scalar.y" input_port="scalar_to_vector3.y"/>
        <connection output_port="vector3_to_scalar.z" input_port="subtract.z1"/>
        <connection output_port="subtract1.output" input_port="create_mesh_plane.length"/>
        <connection output_port="scalar_to_vector3.vector3" input_port="create_mesh_plane.position"/>
        <connection output_port="subtract.output" input_port="create_mesh_plane.width"/>
    </connections>
</sub_root>

darioOrtisi · ‎10-03-2023

Thank you @morten.bojsen-hansen

It work perfectly

Thank you very much.

Place object to the base of another

Place object to the base of another

Place object to the base of another

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