Dev:Py/Scripts/3D interaction/Panel Measure

Version history (up to 0.8.0)

Since I removed the changelog from the script file itself - here's the original text up until version 0.8.0.

v0.8.0

• Volume calculation

v0.7.15

• Measurement of face normals by TNae + extended to cover all cases.
• Grouped measured values inside boxes.

v0.7.14

• Fixed matrix calculation order.
• Replaced region3d_get_2d_coordinates with location_3d_to_region_2d" from bpy_extras.view3d_utils.

v0.7.13

• Moved property definitions to registration function.
• Changed automatic callback adding to manual, the current API doesn't seem to allow this top be automatically yet.
• Various API fixes.

v0.7.12

• Moved setting of properties to callback function (it is bad practise to set it in the draw code).
• Fixed distance calculation of parented objects.
• API change: add_modal_handler -> modal_handler_add
• Regression: Had to disable area display for selection with more than 2 meshes.
• Fixed Local/Global vert-loc calculations in EditMode.

v0.7.11

• Applied patch by Filiciss Muhgue that fixes the text in quad view.

v0.7.10

• Applied patch by Filiciss Muhgue that (mostly) fixes the quad view.
• Patch link: https://projects.blender.org/tracker/?func=detail&atid=127&aid=24932&group_id=9
• Thanks for that!
• Removed (now) unneeded "attr" setting for properties.

v0.7.9

• Updated scene properties for changes in property API.
• See http://lists.blender.org/pipermail/bf-committers/2010-September/028654.html
• Synced API changes in/from local copy.

v0.7.8

• Various Py API changes by Campbell ...
• bl_default_closed -> bl_options = {'DEFAULT_CLOSED'}
• x.verts -> x.vertices
• @classmethod def poll(cls, context)
• No "location" in bl_info->name
• bl_info->api

v0.7.7

• One more change to the callback registration code.
• Now it should finally work as intended.

v0.7.6

• API changes (r885, r886) - register & unregister function

v0.7.5.3

• Small fix for bug in v0.7.5.1 (location was off when object was moved)

v0.7.5.2

• Changed callback registration back to original code & fixed bug in there (use bl_idname instead of bl_label)

v0.7.5.1

• Global mode is now taking rotation into account properly.

v0.7.5

• Fixed lagging and drawing issues.

v0.7.4

• Fixed the modal_handler_add and callback_add code. Thanks to jesterKing for pointing that out :-)

v0.7.3.1

• Fixed bug that made all lines in Blender stippled :-)

v0.7.3

• Added display of delta x/y/z value in 3d view.
• Inspired by warpi's patch here: http://blenderartists.org/forum/showpost.php?p=1671033&postcount=47
• Also added display of dx,dy,dz lines
• Changed the "dist" colors to something not already used by x/y/z axes.

v0.7.2

• Merged changes from trunk (scripts_addons r847):
• obj.matrix -> obj.matrix_world
• vert.selected -> vert.select
• face.selected -> face.select
• bl_info: warning, wiki_url, tracker_url
• removed __bpydoc__
• Use fontid=0 for blf functions. 0 is the default font.

v0.7.1

• Merged changes by Campbell:
• Fix for API change: Collections like context.selected_objects no longer return None for empty lists.
• Update for mathutils, also stripped some redundant conversions (Mostly "Vector()" stuff)

v0.7

• Initial support for drawing lines. (Thanks to Algorith for applying my perspective_matrix patch.)
• The distance value (in BUs) is also drawn in the 3D view now.
• Also fixed some wrong calculations of global/local distances.
• Now it's really "what you see is what is calculated".
• Use bl_info for Add-On information.
• Use "3D View" in category & name
• Renamed reenter_editmode to view3d.reenter_editmode.
• Renamed panel_measure.py into space_view3d_panel_measure.py
• Active object is only used for edit-mode now. Measurement with exactly one sel. (but not necessarily active) object now gets the obj via the sel-object array.
• API change Mathutils -> mathutils (r557)
• Deselecting 1 of 2 objects now works correctly (active object is ignored).
• Force a redraw of the area so disabling the "measure_panel_draw" checkbox will clear the line/text.
• Only calculate area (CPU heavy) if a "area" checkbox is enabled.

v0.6.4

• Fixed unneeded meshdata duplication (sometimes crashes Blender).
• The script now correctly calculated the surface area (faceAreaGlobal) of scaled meshes.
• http://projects.blender.org/tracker/?func=detail&atid=453&aid=21913&group_id=153

v0.6.3

• Added register & unregister functions.

v0.6.2

• Fixed precision of second area property.
• Reduced display precision to 5 (instead of 6).
• Added (commented out code) for shortcut [F5] for updating EditMode selection & calculation.
• Changed the script so it can be managed from the "Add-Ons" tab in the user preferences.
• Corrected FSF address.

v0.6.1

• Updated reenter_editmode operator description.
• Fixed search for selected mesh objects.
• Added "BU^2" after values that are not yet translated via "unit".

v0.6

• Fix: Removed EditMode/ObjectMode toggle stuff. This causes all the crashes and is generally not stable.
• Instead I've added a manual "refresh" button.
• I registered a new operator OBJECT_OT_reenter_editmode for this.
• Use "unit" settings (i.e. none/metric/imperial)
• Fix: Only display surface area (>=3 objects) if return value is >=0.
• Minor: Renamed objectFaceArea to objectSurfaceArea
• Updated Vector() and tuple() usage.
• Fixed some comments.

v0.5

• Global surface area (object mode) is now calculated as well.
• Support area calculation for face selection.
• Also made measurement panel closed by default. (Area calculation may use up a lot of CPU/RAM in extreme cases)

v0.4.1

• Various cleanups.
• Using the shorter "scene" instead of "context.scene"
• New functions measureGlobal() and measureLocal() for user-friendly access to the "space" setting.

v0.4

• Calculate & display the surface area of mesh objects (local space only right now).
• Expanded global/local switch.
• Made "local" option for 3Dcursor-only in edit mode actually work.
• Fixed local/global calculation for 3Dcursor<->vertex in edit mode.

v0.3.2

• Fixed calculation & display of local/global coordinates.
• The user can now select via dropdown which space is wanted/needed
• Basically this is a bugfix and new feature at the same time :-)

v0.3.1

• Fixed bug where "measure_panel_dist" wasn't defined before it was used.
• Also added the distance calculation "origin -> 3D cursor" for edit mode.

v0.3

• Support for mesh edit mode (1 or 2 selected vertices)

v0.2.1

• Small fix (selecting nothing didn't calculate the distance of the cursor from the origin anymore)

v0.2

• Distance value is now displayed via a FloatProperty widget (and therefore saved to file too right now [according to ideasman42].
• The value is save inside the scene right now.)

   Thanks goes to ideasman42 (Campbell Barton) for helping me out on this.

v0.1 - Initial revision. Seems to work fine for most purposes.