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Clarify transparency in grids and images #8191

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Clarify transparency in grids and images #8191

wants to merge 86 commits into from

Commits on Dec 13, 2023

  1. Clarify transparency in grids and images 

    See forum post for some background and limitations.  This PR does not implement code changes yet, but tries to describe via the documentation what we would like to have implemented before 6.5 is released:
    @PaulWessel
    PaulWessel committed Dec 13, 2023
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Commits on Dec 14, 2023

  1. Count transparencies etc 

    Add new function grdimage_transparencies which determines what type of scenario we have regarding the alpha channel.
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    PaulWessel committed Dec 14, 2023
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  2. Update grdimage.c

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    PaulWessel committed Dec 14, 2023
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  3. Update grdimage.c

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  4. parse +o|t for -Q

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    PaulWessel committed Dec 14, 2023
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  5. Merge branch 'master' into transparency-improv

    @PaulWessel
    PaulWessel committed Dec 14, 2023
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  6. Update grdimage.rst

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    PaulWessel committed Dec 14, 2023
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  7. Merge branch 'master' into transparency-improv

    @PaulWessel
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Commits on Dec 15, 2023

  1. Updates

    @PaulWessel
    PaulWessel committed Dec 15, 2023
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  2. Merge branch 'master' into transparency-improv

    @PaulWessel
    PaulWessel committed Dec 15, 2023
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  3. Update 

    add test
    @PaulWessel
    PaulWessel committed Dec 15, 2023
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  4. More updates

    @PaulWessel
    PaulWessel committed Dec 15, 2023
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  5. Make sure we also project any alpha layer 

    gmtlib_bcr_get_img sames the r,g,b values at given point, but did not also do tramsparency (unless it was coded as 4th band). This commit checks if alpha is not NULLand bands is 1 or 3 then we also compute the sampled transparency
    @PaulWessel
    PaulWessel committed Dec 15, 2023
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  6. Start at 0

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    PaulWessel committed Dec 15, 2023
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  7. still working on it

    @PaulWessel
    PaulWessel committed Dec 15, 2023
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Commits on Dec 16, 2023

  1. Improve w/e/sn passing to GDAL 

    If image header has wesn so that e>w and n> s we use that for domain
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    PaulWessel committed Dec 16, 2023
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  2. Merge branch 'master' into transparency-improv

    @PaulWessel
    PaulWessel committed Dec 16, 2023
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  3. Merge branch 'master' into transparency-improv

    @PaulWessel
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  4. Update grdimage.c

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    PaulWessel committed Dec 16, 2023
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  5. Watch out for -A

    @PaulWessel
    PaulWessel committed Dec 16, 2023
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  6. Elliminate dead code

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    PaulWessel committed Dec 16, 2023
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  7. Update grdimage.c

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  8. Update grdimage.c

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    PaulWessel committed Dec 16, 2023
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  9. Restore image blend simulation of transparency for images

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    PaulWessel committed Dec 16, 2023
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  10. Update grdimage.c

    @PaulWessel
    PaulWessel committed Dec 16, 2023
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  11. update docs and remove fprintf debug statements

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    PaulWessel committed Dec 16, 2023
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  12. Use -Qi

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    PaulWessel committed Dec 16, 2023
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  13. Update grdimage.c

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Commits on Dec 17, 2023

  1. Add highres square plotting 

    Scale PS coordinates by 10 and round to nearest integer then divide by 10 and separate intereger from single decimal (0-9) and write xx.y to the PS file. to ensure neighboring squares match exactly.
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    PaulWessel committed Dec 17, 2023
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  2. Update grdimage.c

    @PaulWessel
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  3. Clarify args again plus save NaN color for indexed image

    @PaulWessel
    PaulWessel committed Dec 17, 2023
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  4. Update gmt_api.c

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  5. Update gmt_api.c

    @PaulWessel
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  6. Update gmt_api.c

    @PaulWessel
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  7. Merge branch 'master' into transparency-improv

    @PaulWessel
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  8. Update grdimage.c

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  9. Update grdmix.c

    @PaulWessel
    PaulWessel committed Dec 17, 2023
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Commits on Dec 18, 2023

  1. Update grdmix.rst

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  2. Update grdmix.rst

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Commits on Dec 19, 2023

  1. pause

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    PaulWessel committed Dec 19, 2023
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  2. Merge branch 'master' into transparency-improv

    @PaulWessel
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  3. ups

    @PaulWessel
    PaulWessel committed Dec 19, 2023
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  4. Update grdimage.c

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Commits on Dec 20, 2023

  1. Update grdimage.c

    @PaulWessel
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  2. Update grdimage.c

    @PaulWessel
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Commits on Dec 21, 2023

  1. Update grdimage.c

    @PaulWessel
    PaulWessel committed Dec 21, 2023
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  2. wording

    @PaulWessel
    PaulWessel committed Dec 21, 2023
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  3. Modier +o for -A 

    If we hvae opacities we need a modifier
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    PaulWessel committed Dec 21, 2023
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  4. working on it

    @PaulWessel
    PaulWessel committed Dec 21, 2023
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  5. distinguish between grids and images in TIFF files

    @PaulWessel
    PaulWessel committed Dec 21, 2023
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  6. Update grdimage.c

    @PaulWessel
    PaulWessel committed Dec 21, 2023
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  7. Merge branch 'master' into transparency-improv

    @PaulWessel
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  8. Update grdmix.rst

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Commits on Dec 22, 2023

  1. Merge branch 'master' into transparency-improv

    @PaulWessel
    PaulWessel committed Dec 22, 2023
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Commits on Dec 24, 2023

  1. minors

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  2. Update grdimage.c

    @PaulWessel
    PaulWessel committed Dec 24, 2023
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  3. Update grdimage.c

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Commits on Dec 26, 2023

  1. Polish again

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  2. Update grdimage.c

    @PaulWessel
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  3. Merge branch 'master' into transparency-improv

    @PaulWessel
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Commits on Dec 27, 2023

  1. Merge branch 'master' into transparency-improv

    @PaulWessel
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  2. Merge branch 'master' into transparency-improv

    @PaulWessel
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  3. Merge branch 'master' into transparency-improv

    @PaulWessel
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  4. Merge branch 'master' into transparency-improv

    @PaulWessel
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  5. Update gmt_gdalread.c

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  6. Merge branch 'master' into transparency-improv

    @PaulWessel
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  7. Update gmt_internals.h

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  8. Merge branch 'master' into transparency-improv

    @PaulWessel
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  9. Merge branch 'master' into transparency-improv

    @PaulWessel
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  10. Update gmt_map.c

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  11. Merge branch 'master' into transparency-improv

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  12. Update gmt_macros.h

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  13. Merge branch 'master' into transparency-improv

    @PaulWessel
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  14. Update gmt_hidden.h

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  15. Merge branch 'master' into transparency-improv

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  16. Update gmt_api.c

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  17. Merge branch 'master' into transparency-improv

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  18. Merge branch 'master' into transparency-improv

    @PaulWessel
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  19. Merge branch 'master' into transparency-improv

    @PaulWessel
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  20. Merge branch 'master' into transparency-improv

    @PaulWessel
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  21. Update grdimage.c

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Commits on Dec 28, 2023

  1. Update grdimage.c

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  2. Update grdimage.c

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  3. Merge branch 'master' into transparency-improv

    @PaulWessel
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  4. Update grdimage.c

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  5. Merge branch 'master' into transparency-improv

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