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TopoMatters | Aerial LiDAR and Data for Surveyors

TopoPro® LiDAR processing

Purpose-built post processing for US land surveyors.

3D topographic contour lines visualization
7 Parameter Helmert Transformation for Drone Mapping

Calibrate with confidence

TopoPro’s 7-parameter transformation converts geo-referenced point clouds into ground-scaled project coordinates—preserving accuracy and ensuring seamless project integration.

Scalable tile processing

Point clouds can be unwieldy due to their size. TopoPro efficiently processes LAS tiles while indexing adjacent tile data to ensure seamless conformity across boundaries.

Building and tree classification illustration

Multi-stage ground and built feature classification

If not already classified, TopoPro identifies ground points using multiple stages of deterministic, repeatable algorithms. Off-ground points are processed by local AI with best-effort classification of built features.

Smart thinning

Reduce point cloud bloat with TopoPro’s advanced smart thinning algorithm. The most geometrically reliable ground points are preserved to achieve the target point cloud density while removing redundant data.

TopoPro vertical bias adjustment icon

Vertical bias adjustment

Aerial LiDAR scans often exhibit systematic vertical bias. TopoPro identifies and adjusts the Z-bias using project control, ensuring both ground and off-ground points align perfectly with the survey’s vertical control.

TopoPro clip to survey limits icon

Clip to survey limits

Presentation matters. TopoPro clips the processed point cloud to your survey limits (plus a buffer), ensuring polished and professional results—all in your project’s ground or grid coordinate system.

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Point cloud quality reporting

Using ASPRS-based methodologies, TopoPro validates data conformance against check shots. Detailed reports include vertical RMSE, deltaZ for individual shots, and alerts to quickly flag outliers for review.

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Grade break and flow line computing

Identifying grade breaks and flow lines across a large survey area can be challenging. TopoPro simplifies this by using advanced algorithms to extract these vertices from the point cloud with direct integration into surface models.

TopoPro feature breaklines icon

3D breakline enforcement

Feature breaklines and CG points can be extracted from the post-processed point cloud and enforced in TIN surfaces, preserving sharp edges and the integrity of ground features. 

Topo/TIN surface screenshot

Topo/TIN and terrain fit reporting

Enjoy high-quality surfaces, including points, contours, and a LandXML TIN. CAD models are tested against thousands of LAS points to ensure an accurate, simplified model.

LiDAR corridor colored by GPS time

Processing Transparency with Interactive Quality Report

Say goodbye to black-box processing. TopoPro’s interactive HTML report provides a step-by-step breakdown of LAS treatments and derivative extractions, complete with applied parameters, QC and 3D visualizations.

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Reduce point cloud bloat and extract better deliverables