ProEssentials v10 WinForms .NET 8 — dual-channel ultrasonic borehole image (AWCN amplitude + TTCN transit time) rendered as a single concatenated contour chart sharing one colormap, one zoom, one rendering pass. A top-right overlay button toggles null rendering (Black / Gaps). Direct3D + GPU compute shader.
- Dual heatmaps in one chart — two co-registered azimuthal channels concatenated along X with a null-data gutter between them.
- Parallel data loading — both ~34 MB UTF-16 files load concurrently via
Task.Run, with a span-based single-pass parser. - Null-rendering toggle — flips
NullDataValueZbetween -999 (Z=0 renders black) and 0 (cells become mesh holes) with no data re-push. PeCustomGridNumberrelabels X gridlines as compass markers (N/E/S/W) per channel; compass line annotations overlay the chart.- Code-built UI — chart + floating overlay button in
MainForm.cs; no.Designer.cs/.resx.
The parallel loader, channel concatenation, the PeCustomGridNumber handler, and
the entire chart configuration are identical to the WPF version. Host changes:
Screen.PrimaryScreen.WorkingArea (was SystemParameters.WorkArea), WinForms
MessageBox, Application.Exit(), System.Drawing.Color, and the overlay
button is parented to the chart control and anchored top-right (WPF placed it in
the same Grid cell).
➡️ WPF version: wpf-chart-ultrasonic-borehole-image-dual-contour-heatmap
TestData_FORGE_AWCN_clipped.txt and TestData_FORGE_TTCN_clipped.txt
(~34 MB each) are not included. Place both in the project root; they copy
next to the executable on build. The tools/ folder has the Python extractors.
- Clone; put both
TestData_FORGE_*files in the root - Open
WirelineUbi.slnin Visual Studio 2022 - Build → Rebuild Solution; press F5. Toggle null mode top-right.
References ProEssentials.Chart.Net80.x64.Winforms (>= 10.0.0.28).
Example code is MIT licensed. ProEssentials requires a commercial license. Well-log data: Utah FORGE Geothermal Data Repository (CC-BY 4.0).