Problems with debug asserts

[tredecimguttatus]

Hello!
I've continued investigations from topic #23

Got several new results.

Input vectors:

{
  "name": "intersected_initial",
  "isClosed": true,
  "Area": 4.155,
  "vertexes": [
    [68.969210062592879, 39.825009999999999, 0.227652821420176],
    [71.447072586049913, 41.014860011263892, 1.000000000000000],
    [70.455927413950079, 41.808919988736108, -0.227652821420176],
    [68.969209937407129, 41.095009999999995, 1.000000000000000]
  ]
}

{
  "name": "result_0",
  "isClosed": true,
  "Area": 11.3863,
  "vertexes": [
    [71.447351802797868, 41.015208780804905, 0.000000000000000],
    [75.004341802797867, 45.461448780804908, 1.000000000000000],
    [74.012638197202122, 46.254811219195098, 0.000000000000000],
    [70.455648197202123, 41.808571219195095, -0.227591152597540],
    [68.969209937407129, 41.095009999999995, 1.000000000000000],
    [68.969210062592879, 39.825009999999999, 0.227652821420176],
    [71.447072586049913, 41.014860011263892, 0.000175893156428]
  ]
}

In debug mode i see assert failure:

thread '<unnamed>' panicked at 'assertion failed: pline.at(0).pos().fuzzy_eq_eps(pline.last().unwrap().pos(), slice_join_eps)', C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:605:9
stack backtrace:
   0:     0x7ffd5310f20f - std::backtrace_rs::backtrace::dbghelp::trace
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\dbghelp.rs:98
   1:     0x7ffd5310f20f - std::backtrace_rs::backtrace::trace_unsynchronized
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
   2:     0x7ffd5310f20f - std::sys_common::backtrace::_print_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:66
   3:     0x7ffd5310f20f - std::sys_common::backtrace::_print::impl$0::fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:45
   4:     0x7ffd53121baa - core::fmt::write
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\fmt\mod.rs:1196
   5:     0x7ffd5310dac9 - std::io::Write::write_fmt<std::sys::windows::stdio::Stderr>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\io\mod.rs:1654
   6:     0x7ffd53110e5b - std::sys_common::backtrace::_print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:48
   7:     0x7ffd53110e5b - std::sys_common::backtrace::print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:35
   8:     0x7ffd53110e5b - std::panicking::default_hook::closure$1
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:295
   9:     0x7ffd53110a4e - std::panicking::default_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:314
  10:     0x7ffd53111451 - std::panicking::rust_panic_with_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:698
  11:     0x7ffd531112d2 - std::panicking::begin_panic_handler::closure$0
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:586
  12:     0x7ffd5310fb17 - std::sys_common::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0,never$>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:138
  13:     0x7ffd53110fe9 - std::panicking::begin_panic_handler
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:584
  14:     0x7ffd53128225 - core::panicking::panic_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\panicking.rs:142
  15:     0x7ffd531280cc - core::panicking::panic
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\panicking.rs:48
  16:     0x7ffd5308fa01 - cavalier_contours::polyline::internal::pline_boolean::stitch_slices_into_closed_polylines::closure$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64,cavalier_contours::polyline::internal::pline_boole
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:605
  17:     0x7ffd5308dfd4 - cavalier_contours::polyline::internal::pline_boolean::stitch_slices_into_closed_polylines<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64,cavalier_contours::polyline::internal::pline_boolean::OrAndSt
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:693
  18:     0x7ffd53081602 - cavalier_contours::polyline::internal::pline_boolean::polyline_boolean<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:870
  19:     0x7ffd530992ca - cavalier_contours::polyline::traits::PlineSource::boolean_opt<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64> >
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\traits.rs:1465
  20:     0x7ffd53096bbc - cavalier_contours_ffi::cavc_pline_boolean::closure$0
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:965
  21:     0x7ffd530dd120 - std::panicking::try::do_call<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:492
  22:     0x7ffd530df193 - std::panicking::try::do_catch<cavalier_contours_ffi::cavc_plinelist_pop::closure_env$0,i32>
  23:     0x7ffd530dc68c - std::panicking::try<i32,cavalier_contours_ffi::cavc_pline_boolean::closure_env$0>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:456
  24:     0x7ffd53071d0d - std::panic::catch_unwind<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panic.rs:137
  25:     0x7ffd53101c11 - cavalier_contours_ffi::cavc_pline_boolean
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:949

C Code:

        cavc_pline_boolean_o combine_options;
        ret = cavc_pline_boolean_o_init(&combine_options);
        if (ret!=0) {qDebug()<<QString("cavc_pline_boolean_o_init returned error status %1").arg(ret);}

        try {
            int32_t ret =
            cavc_pline_boolean( candidate,
                                countur,
                                cavc_booleanOp_And,
                                &combine_options,
                                (const cavc_plinelist**) &pos_list,    /* +1 */
                                (const cavc_plinelist**) &neg_list);   /* +2 */

Assert fails in debug mode only.
Could you please check it.

There are several additional similar troubles. Could you please clarify, do you need input vectors data for this type of issues?
Im asking because i can copy-paste Rust backtrace in one minute, but grabbing faulty vectors takes time.

For example:

thread '<unnamed>' panicked at 'point does not lie on the line defined by p0 to p1 (based on distance)', C:\cavalier_contours-master\cavalier_contours\src\core\math\base_math.rs:272:5
stack backtrace:
   0:     0x7ffd532af20f - std::backtrace_rs::backtrace::dbghelp::trace
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\dbghelp.rs:98
   1:     0x7ffd532af20f - std::backtrace_rs::backtrace::trace_unsynchronized
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
   2:     0x7ffd532af20f - std::sys_common::backtrace::_print_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:66
   3:     0x7ffd532af20f - std::sys_common::backtrace::_print::impl$0::fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:45
   4:     0x7ffd532c1baa - core::fmt::write
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\fmt\mod.rs:1196
   5:     0x7ffd532adac9 - std::io::Write::write_fmt<std::sys::windows::stdio::Stderr>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\io\mod.rs:1654
   6:     0x7ffd532b0e5b - std::sys_common::backtrace::_print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:48
   7:     0x7ffd532b0e5b - std::sys_common::backtrace::print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:35
   8:     0x7ffd532b0e5b - std::panicking::default_hook::closure$1
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:295
   9:     0x7ffd532b0a4e - std::panicking::default_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:314
  10:     0x7ffd532b1451 - std::panicking::rust_panic_with_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:698
  11:     0x7ffd532b12d2 - std::panicking::begin_panic_handler::closure$0
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:586
  12:     0x7ffd532afb17 - std::sys_common::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0,never$>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:138
  13:     0x7ffd532b0fe9 - std::panicking::begin_panic_handler
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:584
  14:     0x7ffd532c8225 - core::panicking::panic_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\panicking.rs:142
  15:     0x7ffd531f6598 - cavalier_contours::core::math::base_math::parametric_from_point<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\core\math\base_math.rs:272
  16:     0x7ffd531f5a3a - cavalier_contours::core::math::line_circle_intersect::line_circle_intr<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\core\math\line_circle_intersect.rs:156
  17:     0x7ffd531f0065 - cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr::closure$0<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\pline_seg_intersect.rs:147
  18:     0x7ffd531ed80e - cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\pline_seg_intersect.rs:241
  19:     0x7ffd532419c9 - cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_intersects.rs:358
  20:     0x7ffd53245b1d - static_aabb2d_index::core::impl$8::visit<f64,tuple$<>,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64> >
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\core.rs:267
  21:     0x7ffd531e8484 - static_aabb2d_index::static_aabb2d_index::StaticAABB2DIndex<f64>::visit_query_with_stack_impl<f64,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\static_aabb2d_index.rs:1050
  22:     0x7ffd531e6c61 - static_aabb2d_index::static_aabb2d_index::StaticAABB2DIndex<f64>::visit_query_with_stack<f64,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyl
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\static_aabb2d_index.rs:1012
  23:     0x7ffd5324116e - cavalier_contours::polyline::internal::pline_intersects::find_intersects<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_intersects.rs:402
  24:     0x7ffd53222bdb - cavalier_contours::polyline::internal::pline_boolean::process_for_boolean<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:55
  25:     0x7ffd53220774 - cavalier_contours::polyline::internal::pline_boolean::polyline_boolean<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:744
  26:     0x7ffd532392ca - cavalier_contours::polyline::traits::PlineSource::boolean_opt<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64> >
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\traits.rs:1465
  27:     0x7ffd53236bbc - cavalier_contours_ffi::cavc_pline_boolean::closure$0
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:965
  28:     0x7ffd5327d120 - std::panicking::try::do_call<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:492
  29:     0x7ffd5327f193 - std::panicking::try::do_catch<cavalier_contours_ffi::cavc_plinelist_pop::closure_env$0,i32>
  30:     0x7ffd5327c68c - std::panicking::try<i32,cavalier_contours_ffi::cavc_pline_boolean::closure_env$0>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:456
  31:     0x7ffd53211d0d - std::panic::catch_unwind<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panic.rs:137
  32:     0x7ffd532a1c11 - cavalier_contours_ffi::cavc_pline_boolean
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:949

Best regards,
Andrei Rodionov

[jbuckmccready]

What version (or commit) of cavalier contours are you using? I was unable to trigger a debug assert from those inputs using the latest on master (commit: 08200b5).

[tredecimguttatus]

Hello!

Thats interesting, i've checked asserts after using this scripts:

cd C:\
rd C:\cavalier_contours-master /s /q
git clone https://github.com/jbuckmccready/cavalier_contours cavalier_contours-master
cd C:\cavalier_contours-master
cargo build
cargo build --release
cbindgen --crate cavalier_contours_ffi --output cavc_ffi.h

and
xcopy "C:\cavalier_contours-master\target\release\*cavalier_contours*.*" /y
and
xcopy "C:\cavalier_contours-master\target\debug\*cavalier_contours*.*" /y

And expected that latest master will be used (checked manually, yes, i use latest)

Anyway, i took input data from my logs as intermediate result, i will check data separately, also i will check directories and dataflow more carefully tomorrow, thank you!

[jbuckmccready]

Here is how I tested inputs:
Using web demo app: https://jbuckmccready.github.io/cavalier_contours_web_demo_page/#/pline_boolean

Then I use "COPY TEST CODE" button and run test under debug build in Rust.

[tredecimguttatus]

Hello!
Some intermediate info.
In test mode i have same result as you - no assert failure.
But in other part of source, same data (bit-wise) cause assert.
May be some memory corrupted somehow... I will proceed with investigating, but now i see no difference.

[tredecimguttatus]

Hello again!
I think i got it.
Could you please check this data:

{
  "name": "source_a",
  "isClosed": true,
  "Area": 11.3862,
  "vertexes": [
    [71.4473518027978684585832525, 41.0152087808049046202540922, 0.0000000000000000000000000],
    [75.0043418027978674444966600, 45.4614487808049076988936577, 1.0000000000000000000000000],
    [74.0126381972021221145041636, 46.2548112191950977489796060, 0.0000000000000000000000000],
    [70.4556481972021231285907561, 41.8085712191950946703400405, -0.2275911525975401472621229],
    [68.9692099374071290185383987, 41.0950099999999949318407744, 0.9999999999999998889776975],
    [68.9692100625928787849261425, 39.8250099999999989108800946, 0.2276528214201760380586137]
  ]
}
{
  "name": "source_b",
  "isClosed": true,
  "Area": 9.39377,
  "vertexes": [
    [62.5700009923099855768668931, 39.8250000000007773337529215, 0.0000000000000000000000000],
    [68.9692109923099962998094270, 39.8250100000007734024620731, 1.0000000000000000000000000],
    [68.9692090076900115036551142, 41.0950099999992204402587959, 0.0000000000000000000000000],
    [62.5699990076900149915672955, 41.0949999999992243715496443, 1.0000000000000000000000000]
  ]
}

Looks like i gave you wrong vector. sorry(

Best regards,
Andrei Rodionov

[tredecimguttatus]

And another assert with this dataset:

{
  "name": "source_a",
  "isClosed": true,
  "Area": 1.52688,
  "vertexes": [
    [15.4607448447991053797068162, 20.4413532936729609446047107, 0.2839154127006927041954043],
    [14.5489900000002716495828281, 18.9650995449645272117322747, 0.9999999999999998889776975],
    [15.3109899999997285391373225, 18.9651004550354720379345963, -0.2839154127006926486842531],
    [15.8019351552008942007887526, 19.7600067063270401490626682, 0.9999999999999998889776975]
  ]
}
{
  "name": "source_b",
  "isClosed": true,
  "Area": 1.11524,
  "vertexes": [
    [14.5489900000254550604950055, 18.9650955958848683735595841, 0.0000000000000000000000000],
    [14.5490000000254546819178358, 18.0999955958848701698116201, 1.0000000000000000000000000],
    [15.3109999999745447496479756, 18.1000044041151326723593229, 0.0000000000000000000000000],
    [15.3109899999745451282251452, 18.9651044041151308761072869, 1.0000000000000000000000000]
  ]
}

Assert:

thread '<unnamed>' panicked at 'point does not lie on the line defined by p0 to p1 (based on distance)', C:\cavalier_contours-master\cavalier_contours\src\core\math\base_math.rs:272:5
stack backtrace:
   0:     0x7ffd5898efcf - std::backtrace_rs::backtrace::dbghelp::trace
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\dbghelp.rs:98
   1:     0x7ffd5898efcf - std::backtrace_rs::backtrace::trace_unsynchronized
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
   2:     0x7ffd5898efcf - std::sys_common::backtrace::_print_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:66
   3:     0x7ffd5898efcf - std::sys_common::backtrace::_print::impl$0::fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:45
   4:     0x7ffd589a196a - core::fmt::write
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\fmt\mod.rs:1196
   5:     0x7ffd5898d889 - std::io::Write::write_fmt<std::sys::windows::stdio::Stderr>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\io\mod.rs:1654
   6:     0x7ffd58990c1b - std::sys_common::backtrace::_print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:48
   7:     0x7ffd58990c1b - std::sys_common::backtrace::print
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:35
   8:     0x7ffd58990c1b - std::panicking::default_hook::closure$1
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:295
   9:     0x7ffd5899080e - std::panicking::default_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:314
  10:     0x7ffd58991211 - std::panicking::rust_panic_with_hook
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:698
  11:     0x7ffd58991092 - std::panicking::begin_panic_handler::closure$0
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:586
  12:     0x7ffd5898f8d7 - std::sys_common::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0,never$>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\sys_common\backtrace.rs:138
  13:     0x7ffd58990da9 - std::panicking::begin_panic_handler
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\std\src\panicking.rs:584
  14:     0x7ffd589a7fe5 - core::panicking::panic_fmt
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3/library\core\src\panicking.rs:142
  15:     0x7ffd588d6598 - cavalier_contours::core::math::base_math::parametric_from_point<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\core\math\base_math.rs:272
  16:     0x7ffd588d59a0 - cavalier_contours::core::math::line_circle_intersect::line_circle_intr<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\core\math\line_circle_intersect.rs:155
  17:     0x7ffd588d0065 - cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr::closure$0<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\pline_seg_intersect.rs:147
  18:     0x7ffd588cd5ee - cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr<f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\pline_seg_intersect.rs:236
  19:     0x7ffd58921789 - cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_intersects.rs:358
  20:     0x7ffd589258dd - static_aabb2d_index::core::impl$8::visit<f64,tuple$<>,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64> >
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\core.rs:267
  21:     0x7ffd588c8484 - static_aabb2d_index::static_aabb2d_index::StaticAABB2DIndex<f64>::visit_query_with_stack_impl<f64,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\static_aabb2d_index.rs:1050
  22:     0x7ffd588c6c61 - static_aabb2d_index::static_aabb2d_index::StaticAABB2DIndex<f64>::visit_query_with_stack<f64,cavalier_contours::polyline::internal::pline_intersects::find_intersects::closure_env$0<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyl
                               at C:\Users\KarakurT\.cargo\registry\src\github.com-1ecc6299db9ec823\static_aabb2d_index-1.0.0\src\static_aabb2d_index.rs:1012
  23:     0x7ffd58920f2e - cavalier_contours::polyline::internal::pline_intersects::find_intersects<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_intersects.rs:402
  24:     0x7ffd58902bdb - cavalier_contours::polyline::internal::pline_boolean::process_for_boolean<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:55
  25:     0x7ffd58900774 - cavalier_contours::polyline::internal::pline_boolean::polyline_boolean<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64>,f64>
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\internal\pline_boolean.rs:744
  26:     0x7ffd5891908a - cavalier_contours::polyline::traits::PlineSource::boolean_opt<cavalier_contours::polyline::pline::Polyline<f64>,cavalier_contours::polyline::pline::Polyline<f64> >
                               at C:\cavalier_contours-master\cavalier_contours\src\polyline\traits.rs:1465
  27:     0x7ffd5891697c - cavalier_contours_ffi::cavc_pline_boolean::closure$0
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:965
  28:     0x7ffd5895cee0 - std::panicking::try::do_call<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:492
  29:     0x7ffd5895ef53 - std::panicking::try::do_catch<cavalier_contours_ffi::cavc_plinelist_pop::closure_env$0,i32>
  30:     0x7ffd5895c44c - std::panicking::try<i32,cavalier_contours_ffi::cavc_pline_boolean::closure_env$0>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panicking.rs:456
  31:     0x7ffd588f1d0d - std::panic::catch_unwind<cavalier_contours_ffi::cavc_pline_boolean::closure_env$0,i32>
                               at /rustc/e092d0b6b43f2de967af0887873151bb1c0b18d3\library\std\src\panic.rs:137
  32:     0x7ffd589819d1 - cavalier_contours_ffi::cavc_pline_boolean
                               at C:\cavalier_contours-master\cavalier_contours_ffi\src\lib.rs:949

[jbuckmccready]

I am able to reproduce both those cases, I looked into them briefly, they both just affect accuracy at the epsilon thresholds. The first one (assert in pline_boolean) I think indicates the code can be changed to improve accuracy in certain cases, and the other one (assert in point_from_parametric) I think is just too strict a debug assert but I need to dig into it further.

I'll work on these more and fix them when I find some time in next few days.

[jbuckmccready]

For case number 2 I've tracked the issue down to line_circle_intr not applying the right epsilon in one of the branches, leading to loss of precision, I will commit a change to fix this right now.

For case number 1 I'm realizing the slice_join_eps epsilon value used now for stitching slices together (for both boolean ops and parallel offset) is maybe not required and actually leads to loss in precision (which it does for this case 2). I added the slice_join_eps a long time ago in the C++ code to fix issues that were arising but I'm starting to think those issues were purely due to precision/epsilon problems in the intersect code which has been fixed due to all the feed back and test cases you've provided.

The slice end points that are joined together are always at intersect points and therefore I think should be within the pos_equal_eps used for processing the intersects.

What's happening in case 1 is there is more than 1 candidate slice to join to when using slice_join_eps = 1e-4 and pos_equal_eps = 1e-5 and the code currently picks arbitrarily between them when it should pick the nearest point. I could change the code to sort and pick the nearest point but the problem is also fixed by having slice_join_eps = pos_equal_eps. All my test cases pass when just using the same value for both epsilons but I'm still thinking about why it would or wouldn't be required to have a larger epsilon value for the slice joining.

[jbuckmccready]

OK I removed the slice_join_eps from the pline boolean options (breaking change, if interacted with options directly instead of using defaults), see merge commit for details.

Both cases you reported should be fixed and I added them as test cases. Thanks for the bug report. Closing this issue, please make a new issue if you find more problem cases.

[zdila]

Hello

I still have a problem when running my code in debug mode.

cavalier_contours = "0.3.0"

Polyline { vertex_data: [PlineVertex { x: 45.05580172313815, y: 21.126841631294923, bulge: 0.0 }, PlineVertex { x: 45.29628023875526, y: 21.978451356233762, bulge: 0.0 }, PlineVertex { x: 45.3785556294714, y: 22.31438601188941, bulge: 0.0 }, PlineVertex { x: 45.48890719195993, y: 24.066170448686535, bulge: 0.0 }, PlineVertex { x: 45.36683687946474, y: 26.21141480787847, bulge: 0.0 }, PlineVertex { x: 45.1854403950129, y: 27.913470684423913, bulge: 0.0 }, PlineVertex { x: 45.08583102001116, y: 28.62530354769791, bulge: 0.0 }, PlineVertex { x: 44.89833101991689, y: 29.52359223762525, bulge: 0.0 }, PlineVertex { x: 44.546768519851305, y: 30.562747757060407, bulge: 0.0 }, PlineVertex { x: 44.50770601983725, y: 31.156495331535297, bulge: 0.0 }, PlineVertex { x: 44.75770601992233, y: 31.570510944402656, bulge: 0.0 }, PlineVertex { x: 45.37489352008594, y: 31.984152120408453, bulge: 0.0 }, PlineVertex { x: 49.85145602108028, y: 34.1405290965634, bulge: 0.0 }, PlineVertex { x: 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PlineVertex { x: 90.29676853059729, y: 105.76576976822639, bulge: 0.0 }, PlineVertex { x: 89.10926853035761, y: 106.31262319562435, bulge: 0.0 }, PlineVertex { x: 87.82777438939515, y: 106.65627356254817, bulge: 0.0 }, PlineVertex { x: 85.92176852960782, y: 106.84378690650144, bulge: 0.0 }, PlineVertex { x: 84.04652438856816, y: 107.21918664775583, bulge: 0.0 }, PlineVertex { x: 82.18739352869778, y: 107.48476757134821, bulge: 0.0 }, PlineVertex { x: 80.68739352837002, y: 107.9692371521717, bulge: 0.0 }, PlineVertex { x: 79.31849704366631, y: 108.59489983926983, bulge: 0.0 }, PlineVertex { x: 78.59657321536622, y: 109.32589572701403, bulge: 0.0 }, PlineVertex { x: 78.00184665270825, y: 110.11590644258766, bulge: 0.0 }, PlineVertex { x: 76.2857821992478, y: 112.68276805683445, bulge: 0.0 }, PlineVertex { x: 75.68324313657729, y: 113.56241180820831, bulge: 0.0 }, PlineVertex { x: 74.98304782392036, y: 114.22951933693327, bulge: 0.0 }, PlineVertex { x: 74.13636813617418, y: 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}, PlineVertex { x: 81.54286227861206, y: 193.7532512542619, bulge: 0.0 }], is_closed: false }

Calling polyline.parallel_offset(-3.0).

thread 'OxHTTP server thread 0' panicked at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/core/math/base_math.rs:272:5:
point does not lie on the line defined by p0 to p1 (based on distance)
stack backtrace:
   0: std::panicking::begin_panic
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:686:12
   1: cavalier_contours::core::math::base_math::parametric_from_point
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/core/math/base_math.rs:272:5
   2: cavalier_contours::core::math::line_circle_intersect::line_circle_intr
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/core/math/line_circle_intersect.rs:155:16
   3: cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr::{{closure}}
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/pline_seg_intersect.rs:147:27
   4: cavalier_contours::polyline::pline_seg_intersect::pline_seg_intr
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/pline_seg_intersect.rs:241:16
   5: cavalier_contours::polyline::internal::pline_intersects::visit_global_self_intersects::{{closure}}
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/internal/pline_intersects.rs:175:19
   6: <F as static_aabb2d_index::core::QueryVisitor<T,C>>::visit
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/static_aabb2d_index-0.7.1/src/core.rs:267:9
   7: static_aabb2d_index::static_aabb2d_index::StaticAABB2DIndex<T>::visit_query_with_stack
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/static_aabb2d_index-0.7.1/src/static_aabb2d_index.rs:997:34
   8: cavalier_contours::polyline::internal::pline_intersects::visit_global_self_intersects
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/internal/pline_intersects.rs:216:9
   9: cavalier_contours::polyline::internal::pline_intersects::all_self_intersects_as_basic
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/internal/pline_intersects.rs:285:5
  10: cavalier_contours::polyline::internal::pline_offset::slices_from_dual_raw_offsets
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/internal/pline_offset.rs:1045:9
  11: cavalier_contours::polyline::internal::pline_offset::parallel_offset
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/internal/pline_offset.rs:1511:22
  12: cavalier_contours::polyline::traits::PlineSource::parallel_offset_opt
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/traits.rs:1387:9
  13: cavalier_contours::polyline::traits::PlineSource::parallel_offset
             at /home/martin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cavalier_contours-0.3.0/src/polyline/traits.rs:1351:9
  14: maprender::draw::draw_line_off
             at ./src/draw.rs:113:15

[jbuckmccready]

@zdila Can you make a new issue and also try using the latest on master branch?

[zdila]

@jbuckmccready I apologize, with cavalier_contours = { git = "https://github.com/jbuckmccready/cavalier_contours.git", rev = "78ca697770ea2d97e54122bf67de303c277a662b" } it works. Thank you.

[jbuckmccready]

@zdila I made a new release, 0.4.0 with all the latest changes/fixes on master branch.