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Creating a tin within a certain threshold error

Open mllobera opened this issue 2 years ago • 5 comments

I was wondering if you are considering the possibility of having some threshold error parameter so that the insertion of points would occur until a certain threshold error has been achieved. Thanks

mllobera avatar Dec 14 '23 02:12 mllobera

Not really, but the good news is that it's pretty easy for you to code it externally:

  1. insert the point
  2. check the metrics you want in the TIN
  3. if not happy, use remove() and continue (that's why I implemented a remove function)

But if you give some examples of thresholds, you mean like simplification of a terrain? Like Section 7.3 of the terrainbook?

hugoledoux avatar Dec 14 '23 16:12 hugoledoux

Thanks Hugo,

I think so, yes.. Essentially you refine the TIN the error of all triangles and say the elevations in a raster are within a certain threshold error.

M

On Thu, Dec 14, 2023 at 8:51 AM Hugo Ledoux @.***> wrote:

Not really, but the good news is that it's pretty easy for you to code it externally:

  1. insert the point
  2. check the metrics you want in the TIN
  3. if not happy, use remove() and continue (that's why I implemented a remove function

But if you give some examples of thresholds, you mean like simplification of a terrain? Like Section 7.3 of the terrainbook https://urldefense.com/v3/__https://tudelft3d.github.io/terrainbook/__;!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHl4Dq0LZ0$ ?

— Reply to this email directly, view it on GitHub https://urldefense.com/v3/__https://github.com/hugoledoux/startinpy/issues/13*issuecomment-1856198308__;Iw!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHlUQSIxW4$, or unsubscribe https://urldefense.com/v3/__https://github.com/notifications/unsubscribe-auth/AANCY3QBYLSUNAJHYAPP7FDYJMU75AVCNFSM6AAAAABAUDSZCWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNJWGE4TQMZQHA__;!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHlt9DHKHg$ . You are receiving this because you authored the thread.Message ID: @.***>

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Marcos Llobera Assoc. Prof. in Anthropology Digital Archaeology Research Lab (DigAR Lab https://www.digarlab.uw.edu/) University of Washington pronouns: he/his/him

mllobera avatar Dec 14 '23 19:12 mllobera

I believe this is exactly what you describe in your refinement algorithm in section 7.3. This is what I would like to achieve using startinpy.

M.

On Thu, Dec 14, 2023 at 11:13 AM Marcos Llobera @.***> wrote:

Thanks Hugo,

I think so, yes.. Essentially you refine the TIN the error of all triangles and say the elevations in a raster are within a certain threshold error.

M

On Thu, Dec 14, 2023 at 8:51 AM Hugo Ledoux @.***> wrote:

Not really, but the good news is that it's pretty easy for you to code it externally:

  1. insert the point
  2. check the metrics you want in the TIN
  3. if not happy, use remove() and continue (that's why I implemented a remove function

But if you give some examples of thresholds, you mean like simplification of a terrain? Like Section 7.3 of the terrainbook https://urldefense.com/v3/__https://tudelft3d.github.io/terrainbook/__;!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHl4Dq0LZ0$ ?

— Reply to this email directly, view it on GitHub https://urldefense.com/v3/__https://github.com/hugoledoux/startinpy/issues/13*issuecomment-1856198308__;Iw!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHlUQSIxW4$, or unsubscribe https://urldefense.com/v3/__https://github.com/notifications/unsubscribe-auth/AANCY3QBYLSUNAJHYAPP7FDYJMU75AVCNFSM6AAAAABAUDSZCWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNJWGE4TQMZQHA__;!!K-Hz7m0Vt54!gPOCGLNrTyNBjKxaP2Pli_NOJTRradvDdlOfQPxt2dWyQJBLREKzyK7uabpLcX6J2XyMJxMh9xjiqJHlt9DHKHg$ . You are receiving this because you authored the thread.Message ID: @.***>

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Marcos Llobera Assoc. Prof. in Anthropology Digital Archaeology Research Lab (DigAR Lab https://www.digarlab.uw.edu/ ) University of Washington pronouns: he/his/him

--

Marcos Llobera Assoc. Prof. in Anthropology Digital Archaeology Research Lab (DigAR Lab https://www.digarlab.uw.edu/) University of Washington pronouns: he/his/him

mllobera avatar Dec 14 '23 19:12 mllobera

I'll leave this issue open as I might at some point implement it, but it's not a top priority I'm afraid.

hugoledoux avatar Dec 15 '23 07:12 hugoledoux

Thanks for the reply

On Thu, Dec 14, 2023 at 11:23 PM Hugo Ledoux @.***> wrote:

I'll leave this issue open as I might at some point implement it, but it's not a top priority I'm afraid.

— Reply to this email directly, view it on GitHub https://urldefense.com/v3/__https://github.com/hugoledoux/startinpy/issues/13*issuecomment-1857397742__;Iw!!K-Hz7m0Vt54!gvg9tCI6E9CG5M0p6S8vyVwCRu8RmelwHla4QQq7eZd6OCeE1_6DgmvKleNy8siDxhtRgGYQm3qYoPkMmkDfjfo$, or unsubscribe https://urldefense.com/v3/__https://github.com/notifications/unsubscribe-auth/AANCY3Q665IXS53Q2S22PHLYJP3HDAVCNFSM6AAAAABAUDSZCWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNJXGM4TONZUGI__;!!K-Hz7m0Vt54!gvg9tCI6E9CG5M0p6S8vyVwCRu8RmelwHla4QQq7eZd6OCeE1_6DgmvKleNy8siDxhtRgGYQm3qYoPkMwFYQ4_o$ . You are receiving this because you authored the thread.Message ID: @.***>

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Marcos Llobera Assoc. Prof. in Anthropology Digital Archaeology Research Lab (DigAR Lab https://www.digarlab.uw.edu/) University of Washington pronouns: he/his/him

mllobera avatar Dec 15 '23 18:12 mllobera