Difference between revisions of "Command:Link to Spline"

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{{Category|Data Linking}}
 
{{Category|Data Linking}}
 
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Generally if you want some vertex to be attached to some point on another Spline, you need to create a vertex at that point on the target Spline. That increases the complexity of your image and has a drawback - you cannot move the attached vertex along the Spline.
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The easiest method to attach a {{Literal|Vertex}} to a specific position along a {{Literal|Spline}} is to create a new {{Literal|Vertex}} at that same position.
  
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The Link to Spline feature provides an easy way to attach a vertex of a Spline to another Spline without the creation of an additional vertex. The vertex becomes "stuck" to the Spline and can be moved along it.
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In general this method works, but is not very effective. In fact it has at least two drawback. First, it increases the complexity of the drawings. Secondly, it is not possible to move the attached vertex along the {{Literal|Spline}}.
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The {{Literal|Link to Spline}} feature provides an easy way to attach a {{Literal|Vertex}} to a {{Literal|Spline}} without the necessity to create an additional {{Literal|Vertex}}. Once applied, the {{Literal|Vertex}} will be bounded to the {{Literal|Spline}} and will be possible to place it arbitrarily  along the defined path.
  
 
== Linking ==
 
== Linking ==
  
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# Select the Spline you want to link and target Spline
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To link a {{Literal|Vertex}} to a {{Literal|Spline}} you can:
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# Select the handle you want to link to target Spline. It could be  
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# Select the {{Literal|Vertex}} you want to link and the target {{Literal|Spline}}
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## Spline vertex handle  
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# Select the handle you want to link to target {{Literal|Spline}}. It could be:
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## Spline tangent handle
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## a {{Literal|Vertex}} {{l|Handle|handle}}
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## or real handle
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## a {{Literal|Tangent}} handle
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# Right click on the target Spline (not the Spline vertex!) and select "Link to Spline"
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## the {{l|Origin Parameter}} of a {{l|Group Layer}}
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[[File:Link to Spline 0.63.06.png|frame|none]]
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## a {{Literal|Real}} handle
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## if selected vertex handle, it placed on Spline at position where clicked
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# Right click on the target {{Literal|Spline}} and select {{Literal|Link to Spline}} [[File:Link to Spline 0.63.06.png|frame|none]]
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## if selected tangent handle, it links with Spline tangent at click position
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## if a {{Literal|Vertex}} handle is selected, it will be placed on the {{Literal|Spline}} at the clicked position
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## if selected real handle, it links with Spline width at click position
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## if a {{Literal|Tangent}} handle is selected, it will be linked at the clicked position
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## if the {{Literal|Origin}} is selected, it will link both Origin and Angle parameters
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## if a {{Literal|Real}} handle is selected, it will link with the Spline width at the clicked position
  
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:NOTE: At step 2 you can select Spline vertex, tangent and real ducks at the same time to link their values to the values on the same position of target Spline.
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:NOTE: At step 2 you can select more than one type of handle at the same time and link their values to the same position of the target {{Literal|Spline}}.
  
 
== Inverse handle Manipulation ==
 
== Inverse handle Manipulation ==
  
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It is possible to change linked handle position along Spline simply by dragging it.
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It is possible to change the linked handle position along the {{Literal|Spline}} simply by dragging it.
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If you linked the tangent and width ducks too, you will notice what they are changing their values according the values of Spline.
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If you linked the Tangent and Origin, you will notice what they are changing their values according the value of the target {{Literal|Spline}}.
  
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You may also specify the offset of the tangent and width ducks simply by dragging them. I.e. making tangent 90 degrees to Spline will keep that offset at any point of Spline.
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You may also specify their Offset simply by dragging them, i.e. making tangent 90 degrees to Spline will keep that Offset at any point of the {{Literal|Spline}}.
  
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See also: {{l|Doc:Following_a_Spline}} tutorial.
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== See also ==
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* {{l|Doc:Following_a_Spline}} tutorial.

Latest revision as of 11:28, 30 March 2020

Languages Language: 

English

The easiest method to attach a "Vertex" to a specific position along a "Spline" is to create a new "Vertex" at that same position.

In general this method works, but is not very effective. In fact it has at least two drawback. First, it increases the complexity of the drawings. Secondly, it is not possible to move the attached vertex along the "Spline".

The "Link to Spline" feature provides an easy way to attach a "Vertex" to a "Spline" without the necessity to create an additional "Vertex". Once applied, the "Vertex" will be bounded to the "Spline" and will be possible to place it arbitrarily along the defined path.

Linking

To link a "Vertex" to a "Spline" you can:

  1. Select the "Vertex" you want to link and the target "Spline"
  2. Select the handle you want to link to target "Spline". It could be:
    1. a "Vertex" handle
    2. a "Tangent" handle
    3. the Origin of a Group Layer
    4. a "Real" handle
  3. Right click on the target "Spline" and select "Link to Spline"
    Link to Spline 0.63.06.png
    1. if a "Vertex" handle is selected, it will be placed on the "Spline" at the clicked position
    2. if a "Tangent" handle is selected, it will be linked at the clicked position
    3. if the "Origin" is selected, it will link both Origin and Angle parameters
    4. if a "Real" handle is selected, it will link with the Spline width at the clicked position
NOTE: At step 2 you can select more than one type of handle at the same time and link their values to the same position of the target "Spline".

Inverse handle Manipulation

It is possible to change the linked handle position along the "Spline" simply by dragging it. If you linked the Tangent and Origin, you will notice what they are changing their values according the value of the target "Spline".

You may also specify their Offset simply by dragging them, i.e. making tangent 90 degrees to Spline will keep that Offset at any point of the "Spline".

See also

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