Radiation Rose - [source code]

Use this component to make a radiation rose in the Rhino scene. Radiation roses give a sense of how much radiation comes from the different cardinal directions, which will give an initial idea of where glazing should be minimized, shading applied, or solar collectors placed. -

Inputs

  • north [Optional]
    Input a vector to be used as a true North direction for the sun path or a number between 0 and 360 that represents the degrees off from the y-axis to make North. The default North direction is set to the Y-axis (0 degrees).
  • selectedSkyMtx [Required]
    The output from the selectSkyMtx component.
  • context [Optional]
    Optional breps or meshes representing context surrounding the point at the center of the radiation rose. This context geometry will block the radiation that shows up in the rose.
  • numOfArrows [Default]
    An interger that sets the number of arrows (or cardingal directions) in the radiation rose. The default is set to 36.
  • surfaceTiltAngle [Default]
    A number between 0 and 90 that sets the tilt angle in degrees of the analysis plane (0 = roof, 90 = vertical wall). The defult is set to 90 for a radiation study of a wall (ie. radiation on a curtain wall).
  • centerPoint [Default]
    A point that sets the location of the radiation rose. The default is set to the Rhino origin (0,0,0).
  • scale [Default]
    Use this input to change the scale of the radiation rose. The default is set to 1 for any selSkyMtx that is longer than a day and 1000 for any selSkyMtx that is less than a day.
  • arrowHeadScale [Default]
    Use this input to change the scale of the arrow heads of the radiation rose. The default is set to 1.
  • legendPar [Optional]
    Optional legend parameters from the Ladybug Legend Parameters component.
  • showTotalOnly [Optional]
    Set to "True" to only show a radiation rose with the total radiation. The default is "False", which will produce 3 radiation roses: one of diffuse radiation, one of direct radiation, and one of the total radiation.
  • bakeIt [Optional]
    An integer that tells the component if/how to bake the bojects in the Rhino scene. The default is set to 0. Choose from the following options: 0 (or False) - No geometry will be baked into the Rhino scene (this is the default). 1 (or True) - The geometry will be baked into the Rhino scene as a colored hatch and Rhino text objects, which facilitates easy export to PDF or vector-editing programs. 2 - The geometry will be baked into the Rhino scene as colored meshes, which is useful for recording the results of paramteric runs as light Rhino geometry.
  • runIt [Required]
    Set to "True" to run the component and generate a radiation rose.

Outputs

  • readMe!
    ...
  • radiationArrowsMesh
    A colored mesh representing the intensity of radiation from different cardinal directions.
  • radRoseBaseCrvs
    A set of guide curves that mark the directions of radiation analysis.
  • legend
    A legend of the radiation rose. Connect this output to a grasshopper "Geo" component in order to preview the legend separately in the Rhino scene.
  • legendBasePts
    The legend base point(s), which can be used to move the legend(s) in relation to the rose with the grasshopper "move" component.
  • radRoseEndPts
    The end points of the rose arrows.
  • radRoseValues
    The radiation values in kWh/m2 for each rose arrow.

Check Hydra Example Files for Radiation Rose

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