STL import not working

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STL import not working

drxenocide
I have OpenSCAD 2015.3-2. The STL was repaired in MS 3D Builder, and again with NetFabb Online Service. STL, and pictures of error attached.

Getting Error:
ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion violation! Expr: e->incident_sface() != SFace_const_handle() File: /opt/mxe/usr/x86_64-w64-mingw32.static/include/CGAL/Nef_S2/SM_const_decorator.h Line: 326

A google search revealed: https://github.com/openscad/openscad/issues/1090

Any tips to getting this to work?

Thank you very much,

Ari M. Diacou

//////////////////////// Code ////////////////////////////

/////////////////// Parameters //////////////////////////
neck_width=4;
$fn=24;
/////////////// Derived Parameters //////////////////////
w=neck_width;
///////////////////// Main() ////////////////////////////
color("gray")ball_joint();
color("NavajoWhite"){
    neck();
    head();
    }
/////////////////// Functions ///////////////////////////
module head(){
    translate([.6,0,.6])
    rotate([0,-5,0])
    scale(.17) 
        import("Head 3_fixed.stl",convexity=8);
}

module neck(){
    w1=.64*w;
    a=0.8;
    b=0.85;
    w2=a*w1;
    rotate([0,-atan((w1-w2)/2/w1),0])
    scale([1,b,1]){
        translate([0,0,0]) sphere(d=w1);
        translate([0,0,0]) cylinder(d1=w1,d2=w2,h=w1);
        translate([0,0,w1]) sphere(d=w2);
        }
    }
    
module ball_joint(){
    translate([0,0,-w/2]) cylinder(d=w,h=w/2);
    translate([0,0,-w/2]) sphere(d=w);
    }
    
///////////////////////////// Console //////////////////////

Compiling design (CSG Tree generation)...

Rendering Polygon Mesh using CGAL...

ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion violation! Expr: e->incident_sface() != SFace_const_handle() File: /opt/mxe/usr/x86_64-w64-mingw32.static/include/CGAL/Nef_S2/SM_const_decorator.h Line: 326

Geometries in cache: 102

Geometry cache size in bytes: 33869136

CGAL Polyhedrons in cache: 20

CGAL cache size in bytes: 20900192

Total rendering time: 0 hours, 0 minutes, 4 seconds

Top level object is a 3D object:

Simple: yes

Vertices: 627

Halfedges: 2704

Edges: 1352

Halffacets: 1460

Facets: 730

Volumes: 2

Rendering finished.

///////////////////////////////// Library Info //////////////////////////////////
OpenSCAD Version: 2015.03-2
System information:
Windows 8 (v6.2.0.0) 4 CPUs 6.96 GB RAM
Compiler:
GCC "5.2.0" 64bit
Boost version:
1_57
Eigen version:
3.2.5
CGAL version, kernels:
4.5, Cartesian, Extended_cartesian, Epeck
OpenCSG version:
OpenCSG 1.4.0
Qt version:
5.5.1
QScintilla version:
2.8.4
MingW build:
MingW64
GLib version:
2.44.1
Application Path:
C:/Program Files/OpenSCAD
Documents Path:
C:\Users\kimbe\Documents
Resource Path:
C:/Program Files/OpenSCAD
User Library Path:
C:/Users/kimbe/Documents/OpenSCAD/libraries
User Config Path:
C:\Users\kimbe\AppData\Local/OpenSCAD
Backup Path:
C:/Users/kimbe/Documents/OpenSCAD/backups
OPENSCADPATH:

OpenSCAD library path:
C:
/Users/kimbe/Documents/OpenSCAD/libraries
C:
/Program Files/OpenSCAD\libraries

OPENSCAD_FONT_PATH:

OpenSCAD font path:
GLEW version:
1.12.0
OpenGL Version:
4.5.13469 Compatibility Profile Context 21.19.512.0
GL Renderer:
AMD Radeon(TM) R4 Graphics
GL Vendor:
ATI Technologies Inc.
RGBA(8888), depth(24), stencil(8)
GL_ARB_framebuffer_object:
yes
GL_EXT_framebuffer_object:
yes
GL_EXT_packed_depth_stencil:
yes

Using QGLWidget

GL Extensions:

GL_AMDX_debug_output
GL_AMD_blend_minmax_factor
GL_AMD_conservative_depth
GL_AMD_debug_output
GL_AMD_depth_clamp_separate
GL_AMD_draw_buffers_blend
GL_AMD_framebuffer_sample_positions
GL_AMD_gcn_shader
GL_AMD_gpu_shader_int64
GL_AMD_interleaved_elements
GL_AMD_multi_draw_indirect
GL_AMD_name_gen_delete
GL_AMD_occlusion_query_event
GL_AMD_performance_monitor
GL_AMD_pinned_memory
GL_AMD_query_buffer_object
GL_AMD_sample_positions
GL_AMD_seamless_cubemap_per_texture
GL_AMD_shader_atomic_counter_ops
GL_AMD_shader_stencil_export
GL_AMD_shader_stencil_value_export
GL_AMD_shader_trace
GL_AMD_shader_trinary_minmax
GL_AMD_sparse_texture
GL_AMD_sparse_texture_pool
GL_AMD_stencil_operation_extended
GL_AMD_texture_cube_map_array
GL_AMD_texture_texture4
GL_AMD_transform_feedback3_lines_triangles
GL_AMD_transform_feedback4
GL_AMD_vertex_shader_layer
GL_AMD_vertex_shader_viewport_index
GL_ARB_ES2_compatibility
GL_ARB_ES3_1_compatibility
GL_ARB_ES3_compatibility
GL_ARB_arrays_of_arrays
GL_ARB_base_instance
GL_ARB_bindless_texture
GL_ARB_blend_func_extended
GL_ARB_buffer_storage
GL_ARB_clear_buffer_object
GL_ARB_clear_texture
GL_ARB_clip_control
GL_ARB_color_buffer_float
GL_ARB_compatibility
GL_ARB_compressed_texture_pixel_storage
GL_ARB_compute_shader
GL_ARB_conditional_render_inverted
GL_ARB_conservative_depth
GL_ARB_copy_buffer
GL_ARB_copy_image
GL_ARB_cull_distance
GL_ARB_debug_output
GL_ARB_depth_buffer_float
GL_ARB_depth_clamp
GL_ARB_depth_texture
GL_ARB_derivative_control
GL_ARB_direct_state_access
GL_ARB_draw_buffers
GL_ARB_draw_buffers_blend
GL_ARB_draw_elements_base_vertex
GL_ARB_draw_indirect
GL_ARB_draw_instanced
GL_ARB_enhanced_layouts
GL_ARB_explicit_attrib_location
GL_ARB_explicit_uniform_location
GL_ARB_fragment_coord_conventions
GL_ARB_fragment_layer_viewport
GL_ARB_fragment_program
GL_ARB_fragment_program_shadow
GL_ARB_fragment_shader
GL_ARB_framebuffer_no_attachments
GL_ARB_framebuffer_object
GL_ARB_framebuffer_sRGB
GL_ARB_geometry_shader4
GL_ARB_get_program_binary
GL_ARB_get_texture_sub_image
GL_ARB_gl_spirv
GL_ARB_gpu_shader5
GL_ARB_gpu_shader_fp64
GL_ARB_half_float_pixel
GL_ARB_half_float_vertex
GL_ARB_imaging
GL_ARB_indirect_parameters
GL_ARB_instanced_arrays
GL_ARB_internalformat_query
GL_ARB_internalformat_query2
GL_ARB_invalidate_subdata
GL_ARB_map_buffer_alignment
GL_ARB_map_buffer_range
GL_ARB_multi_bind
GL_ARB_multi_draw_indirect
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_occlusion_query
GL_ARB_occlusion_query2
GL_ARB_pipeline_statistics_query
GL_ARB_pixel_buffer_object
GL_ARB_point_parameters
GL_ARB_point_sprite
GL_ARB_program_interface_query
GL_ARB_provoking_vertex
GL_ARB_query_buffer_object
GL_ARB_robust_buffer_access_behavior
GL_ARB_sample_shading
GL_ARB_sampler_objects
GL_ARB_seamless_cube_map
GL_ARB_seamless_cubemap_per_texture
GL_ARB_separate_shader_objects
GL_ARB_shader_atomic_counters
GL_ARB_shader_ballot
GL_ARB_shader_bit_encoding
GL_ARB_shader_draw_parameters
GL_ARB_shader_group_vote
GL_ARB_shader_image_load_store
GL_ARB_shader_image_size
GL_ARB_shader_objects
GL_ARB_shader_precision
GL_ARB_shader_stencil_export
GL_ARB_shader_storage_buffer_object
GL_ARB_shader_subroutine
GL_ARB_shader_texture_image_samples
GL_ARB_shader_texture_lod
GL_ARB_shading_language_100
GL_ARB_shading_language_420pack
GL_ARB_shading_language_packing
GL_ARB_shadow
GL_ARB_shadow_ambient
GL_ARB_sparse_buffer
GL_ARB_sparse_texture
GL_ARB_stencil_texturing
GL_ARB_sync
GL_ARB_tessellation_shader
GL_ARB_texture_barrier
GL_ARB_texture_border_clamp
GL_ARB_texture_buffer_object
GL_ARB_texture_buffer_object_rgb32
GL_ARB_texture_buffer_range
GL_ARB_texture_compression
GL_ARB_texture_compression_bptc
GL_ARB_texture_compression_rgtc
GL_ARB_texture_cube_map
GL_ARB_texture_cube_map_array
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_ARB_texture_float
GL_ARB_texture_gather
GL_ARB_texture_mirror_clamp_to_edge
GL_ARB_texture_mirrored_repeat
GL_ARB_texture_multisample
GL_ARB_texture_non_power_of_two
GL_ARB_texture_query_levels
GL_ARB_texture_query_lod
GL_ARB_texture_rectangle
GL_ARB_texture_rg
GL_ARB_texture_rgb10_a2ui
GL_ARB_texture_snorm
GL_ARB_texture_stencil8
GL_ARB_texture_storage
GL_ARB_texture_storage_multisample
GL_ARB_texture_swizzle
GL_ARB_texture_view
GL_ARB_timer_query
GL_ARB_transform_feedback2
GL_ARB_transform_feedback3
GL_ARB_transform_feedback_instanced
GL_ARB_transform_feedback_overflow_query
GL_ARB_transpose_matrix
GL_ARB_uniform_buffer_object
GL_ARB_vertex_array_bgra
GL_ARB_vertex_array_object
GL_ARB_vertex_attrib_64bit
GL_ARB_vertex_attrib_binding
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_vertex_shader
GL_ARB_vertex_type_10f_11f_11f_rev
GL_ARB_vertex_type_2_10_10_10_rev
GL_ARB_viewport_array
GL_ARB_window_pos
GL_ATI_draw_buffers
GL_ATI_envmap_bumpmap
GL_ATI_fragment_shader
GL_ATI_separate_stencil
GL_ATI_texture_compression_3dc
GL_ATI_texture_env_combine3
GL_ATI_texture_float
GL_ATI_texture_mirror_once
GL_EXT_abgr
GL_EXT_bgra
GL_EXT_bindable_uniform
GL_EXT_blend_color
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_compiled_vertex_array
GL_EXT_copy_buffer
GL_EXT_copy_texture
GL_EXT_depth_bounds_test
GL_EXT_direct_state_access
GL_EXT_draw_buffers2
GL_EXT_draw_instanced
GL_EXT_draw_range_elements
GL_EXT_fog_coord
GL_EXT_framebuffer_blit
GL_EXT_framebuffer_multisample
GL_EXT_framebuffer_object
GL_EXT_framebuffer_sRGB
GL_EXT_geometry_shader4
GL_EXT_gpu_program_parameters
GL_EXT_gpu_shader4
GL_EXT_histogram
GL_EXT_multi_draw_arrays
GL_EXT_packed_depth_stencil
GL_EXT_packed_float
GL_EXT_packed_pixels
GL_EXT_pixel_buffer_object
GL_EXT_point_parameters
GL_EXT_polygon_offset_clamp
GL_EXT_provoking_vertex
GL_EXT_rescale_normal
GL_EXT_secondary_color
GL_EXT_separate_specular_color
GL_EXT_shader_image_load_store
GL_EXT_shader_integer_mix
GL_EXT_shadow_funcs
GL_EXT_stencil_wrap
GL_EXT_subtexture
GL_EXT_texgen_reflection
GL_EXT_texture3D
GL_EXT_texture_array
GL_EXT_texture_buffer_object
GL_EXT_texture_compression_bptc
GL_EXT_texture_compression_latc
GL_EXT_texture_compression_rgtc
GL_EXT_texture_compression_s3tc
GL_EXT_texture_cube_map
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_env_dot3
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_integer
GL_EXT_texture_lod
GL_EXT_texture_lod_bias
GL_EXT_texture_mirror_clamp
GL_EXT_texture_object
GL_EXT_texture_rectangle
GL_EXT_texture_sRGB
GL_EXT_texture_sRGB_decode
GL_EXT_texture_shared_exponent
GL_EXT_texture_snorm
GL_EXT_texture_storage
GL_EXT_texture_swizzle
GL_EXT_timer_query
GL_EXT_transform_feedback
GL_EXT_vertex_array
GL_EXT_vertex_array_bgra
GL_EXT_vertex_attrib_64bit
GL_IBM_texture_mirrored_repeat
GL_INTEL_fragment_shader_ordering
GL_KHR_context_flush_control
GL_KHR_debug
GL_KHR_robust_buffer_access_behavior
GL_KHR_robustness
GL_KTX_buffer_region
GL_NV_blend_square
GL_NV_conditional_render
GL_NV_copy_depth_to_color
GL_NV_copy_image
GL_NV_depth_buffer_float
GL_NV_explicit_multisample
GL_NV_float_buffer
GL_NV_half_float
GL_NV_primitive_restart
GL_NV_texgen_reflection
GL_NV_texture_barrier
GL_OES_EGL_image
GL_SGIS_generate_mipmap
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod
GL_SUN_multi_draw_arrays
GL_WIN_swap_hint
WGL_EXT_swap_control


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Re: STL import not working

cacb
On 28. mars 2018 15:50, Ari Diacou wrote:

> I have OpenSCAD 2015.3-2. The STL was repaired in MS 3D Builder, and
> again with NetFabb Online Service. STL, and pictures of error attached.
>
> Getting Error:
> ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion
> violation! Expr: e->incident_sface() != SFace_const_handle() File:
> /opt/mxe/usr/x86_64-w64-mingw32.static/include/CGAL/Nef_S2/SM_const_decorator.h
> Line: 326
>
> A google search revealed: https://github.com/openscad/openscad/issues/1090
>
> Any tips to getting this to work?
>
> Thank you very much,
>
> Ari M. Diacou
There are several issues with this STL file, automatic repair is
unlikely to work. In short there are overlapping faces, so it cannot be
interpreted as 2-manifold.

One example is shown in the attached 2 images, where one of the overlaps
is indicated (there are several others). I think you will have to fix
the problem in the software that generated the original head model.


Carsten Arnholm

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Re: STL import not working

drxenocide
Thanks, I'll see what I can do. 

On Wed, Mar 28, 2018, 2:05 PM Carsten Arnholm <[hidden email]> wrote:
On 28. mars 2018 15:50, Ari Diacou wrote:
> I have OpenSCAD 2015.3-2. The STL was repaired in MS 3D Builder, and
> again with NetFabb Online Service. STL, and pictures of error attached.
>
> Getting Error:
> ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion
> violation! Expr: e->incident_sface() != SFace_const_handle() File:
> /opt/mxe/usr/x86_64-w64-mingw32.static/include/CGAL/Nef_S2/SM_const_decorator.h
> Line: 326
>
> A google search revealed: https://github.com/openscad/openscad/issues/1090
>
> Any tips to getting this to work?
>
> Thank you very much,
>
> Ari M. Diacou

There are several issues with this STL file, automatic repair is
unlikely to work. In short there are overlapping faces, so it cannot be
interpreted as 2-manifold.

One example is shown in the attached 2 images, where one of the overlaps
is indicated (there are several others). I think you will have to fix
the problem in the software that generated the original head model.


Carsten Arnholm
_______________________________________________
OpenSCAD mailing list
[hidden email]
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

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http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org