CloudCompare Update List Message

 
From: "CloudCompare Update List" <cloudcompare@PROTECTED>
Date: February 25th 2014
(Sorry for the multiple emails, an error occurred during the previous mailing)

Dear CloudCompare enthusiasts,

A new version has been released. You'll find it here:
Once again, many thanks to all our supporters who made donations on pledgie!
Click here to lend your support to: CloudCompare and make a donation at www.pledgie.com!
This is a (hopefully) 'stable' version with lots of small improvements and bug fixes:
  • New method: "Edit > Normals > Orient > With Minimum Spanning Tree"
    • This is an alternative method to find the correct orientation of normals based on the determination of a Minimum Spanning Tree
    • It may require a lot of memory but it works better on smooth shapes than the former method based on Fast-Marching (formerly called "Resolve normals direction" and now renamed and move to "Edit > Normals > Orient > With Fast-Marching")
    • It is also automatically suggested by CC if no preferred orientation has been set in the Normals computation tool.
  • New method: "Tools > Other > Density > Accurate (at a given scale)"
    • More accurate method to compute the local density (= number of points inside a sphere centered on each point)
    • The old version is now accessible via "Tools > Other > Density > Approximate" (and it simply outputs the distance to the nearest neighbor now)
    • Command line options have been changed accordingly (see wiki)

    Accurate Density Computation
  • New method: "Tools > Other > Remove duplicate points"
    • Removes duplicate points (creates a new cloud)
  • New method: "Edit > Crop"
    • To crop a point cloud inside a box

    Crop
  • New method: "Color banding" (thanks to M.J. Smith)
    • New option of the 'Edit > Color > Height Ramp' method

    Color Banding
  • Enhancements:

    • ccViewer now supports GL filters (i.e. 'shader' plugins: qEDL and qSSAO)
      • The GL filter banner (yellow) is now smaller, and is displayed at the top of the 3D view (it doesn't hide the scale anymore!)

      • ccViewer EDL

    • Spatial sub-sampling tool ('SPACE' mode):
      • about twice as fast
      • consumes much less memory
      • now the default method when the dialog opens
      • the slider has now a 'logarithmic' behavior (i.e. spacing value will grow much slower)

    • The ASCII file loading dialog is a bit smarter:
      • you can now open ASCII files with invalid columns (such as text labels, etc.) as long as the column is not assigned to any property

    • The OBJ importer now supports polylines ('l' tag)

      • OBJ Polylines

    • Global shift/scale:
      • CC will ask the user when exporting points with the 'Point List Picking' tool if he wishes to keep global shift/scale information
      • CC will warn the user if the translation applied with the 'Edit > Apply transformation' tool is too big (in which case it can be set as 'global shift' instead)

      Big Coordinates Warning

    • New 'preferred' orientations for the 'Normals computation' tool:
      • relatively to (0,0,0) (positive or negative)

    • Distance computation accuracy slightly enhanced (use of double precision internally)

    • The DXF I/O filter can now even load polylines with no descriptor

    • Command line mode has a lots of new options (thanks to A. Bevan, University College London):
      • computation of the best fitting plane
      • ICP registration
      • crop
      • make the (bounding-box) centers of loaded entities match
      • specify export format (clouds or meshes) as well as the extension
      • prevent CC from automatically a timestamp as suffix for output files
      • (see the updated documentation here: wiki)

    • Normals are no longer computed by default when loading a mesh without normals

    • Normals can now be computed on a mesh either 'per-vertex' (mean normal vector of all connected triangles) or 'per-triangle' (gives a 'faceted' look)

    • The 'Point pair-based registration' tool now handles virtual points with very large coordinates (useful to register a cloud with GPS control points for instance)

    • Labels now display both the shifted and the original points coordinates if the cloud is shifted/scaled

    • The VTK I/O filter now handles TRIANGLE_STRIP elements

    • Cross section tool: the box position can now be edited ('advanced' button)

      • Cross Section Advanced button
  • Other:
    • ATOM feed enabled on the forum (http://www.danielgm.net/cc/forum/) (use the native ATOM support on IE or Firefox, or install an ATOM feed reader app on Chrome, e.g. "RSS Feed Reader")
  • Bug fixes:
    • Deleting a 3D view and then selecting an entity previously displayed in this view would make CC crash
    • The default value for scaling of the 'shift on load' dialog was 0
    • A bug in the (spatial) sub-sampling tool has been fixed (could make CC crash)
    • The cloud/cloud distance computation dialog was always computing the octrees twice!
    • DXF files generated by CloudCompare were corrupted (bug from dxflib)
    • The Z coordinate of polyline vertices exported in DXF format was wrongly replaced by the Y coordinate
    • Vertical profiles generated by the qSRA plugin were all the same
    • In some cases no SF or invalid SF were generated by the Rasterize tool (point cloud export)
    • The translation obtained by ICP registration with adaptive scale was wrong! (scale was not applied)
    • The 'repetitive slice extraction' option of the 'Cross section' tool was behaving strangely (some slices were sometimes fused together)
    • Pixel distances were squared twice in the Bilateral filter (shader)
    • The 'Point pair-based registration' dialog was not automatically reset
    • Wrong error code returned by PLY I/O filter when failing to create the output file
    • Meshes color couldn't be changed anymore (with 'Edit > Set color')
    • GL filters rendering was downgraded when switching from perspective to ortho. view
You'll also find the new ccViewer versions here:

And last but not least, you can make donations to the project via'Pledgie': Click here to lend your support to: CloudCompare and make a donation at www.pledgie.com!

Enjoy,

CloudCompare Admin

PS: if you can't read properly this message, you can read it here: http://www.danielgm.net/cc/release/notes/20140223/cc_release_notes_20140223.html
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