GIS Services and Geospatial Data Processing

We convert between cartographic file formats while preserving and checking coordinates, geometries and attributes.

• Consolidation of Compatible Layers and Fields

  Merge partial GIS inventories or data deliveries.

  Expected deliverables: GeoPackage containing merged layers, data dictionary and schema-conflict records.

• Geospatial File Conversion with Quality Checks

  Received datasets are in incompatible formats.

  Expected deliverables: Standardized GeoPackage (GPKG) with a CSV data dictionary; reprojected GeoTIFF raster with processing parameters recorded in JSON; comparative migration report in MD or CSV, with SHA-256 checksums.

• Preparation and Optimization of Raster Files for Exchange

  The raster file is too large or cannot be exchanged with its current metadata.

  Expected deliverables: Optimized GeoTIFF or COG where supported by the driver, preview and resolution checks.

We identify and correct errors, duplicates, overlaps and gaps in geographic data files.

• Shapefile Geometry and Error Diagnostics

  Repair common artifacts in legacy data formats.

  Expected deliverables: Repaired SHP/GPKG package where possible, issue log and test table.

• Audit of Geometries, Overlaps and Topology

  Layer errors are preventing other operations.

  Expected deliverables: Repaired geometry layer in GPKG with a CSV change log; topology anomaly map in GPKG accompanied by an illustrated PDF.

• Coverage Continuity Check for Gaps and Overlaps

  Identify gaps in a polygon dataset intended to provide continuous coverage.

  Expected deliverables: Coverage issue layer, issue counts by type and graphic representation of conflicts.

• Detection and Controlled Removal of Duplicate Geometries

  An inventory contains repeated identical geometries, but attributes must not be lost without review.

  Expected deliverables: Retained and removed layers, duplication criteria and record of feature IDs.

We position plans, imagery and cartographic documents in coordinate reference systems for use in digital maps.

• Georeferencing Scanned Plans from Existing Documentation

  Place historical or supporting plans in geographic coordinates.

  Expected deliverables: Georeferenced raster plan and GCP/RMSE report, coordinate reference system and limitations.

• Coordinate Reference System Standardization

  Sources have incompatible map projections or datums.

  Expected deliverables: Transformed point dataset in CSV or GPKG, documenting the operation and coordinate reference system (CRS) in WKT; horizontal and vertical transformation record in MD or CSV.

• Batch Reprojection of Vector Datasets

  A collection of layers uses different projections and needs standardization.

  Expected deliverables: Reprojected batch, CRS operation used and exception table for inconclusive CRS.

We turn plans, tables and records into organized, reusable digital geographic information.

• Vector Digitization of Plans and Imagery

  Turn reference drawings into editable vector layers.

  Expected deliverables: Digitized vector layer, original reference plan and list of adjustments.

• Cleaning and Reconciliation of Georeferenced Inventories

  Duplicate records or inconsistent addresses and references.

  Expected deliverables: Normalized record dictionary in CSV with operations documented in JSON; spatial matching table in GPKG or PostGIS with unmatched records in CSV; reconciliation anomaly log in CSV and MD.

• Normalization of Geographic Forms and Fields

  Standardize incompatible layer fields into a common processing schema.

  Expected deliverables: Standardized schema with tables/layers using consistent field types and names.

• Conversion of Location Tables into Geographic Layers

  Convert CSV records containing valid coordinates into geographic features.

  Expected deliverables: Point GeoPackage, column schema and list of rejected or ambiguous records.

We locate available cartographic information and extract the data needed for specific projects and analyses.

• Clipping Maps to an Area of Interest

  Extract only the data required for a particular project.

  Expected deliverables: Clipped GeoPackage, clipping mask and feature/extent report.

• Selective Extraction of OpenStreetMap Data

  Public information is scattered across sources needed for local analysis.

  Expected deliverables: Filtered OSM layer package in GPKG, including the query used; OSM quality and coverage record in CSV or MD; reproducible Overpass query in JSON or Overpass QL with supporting MD documentation.

• Attribute- and Spatial-Relation-Based Data Extraction

  Isolate features meeting explicit criteria within larger layers.

  Expected deliverables: GPKG data subset and reproducible query explaining the extracted records.

• Compilation of Layers from Existing Geographic Services

  Compile layers from WFS, WMS or ArcGIS REST services for a documented case.

  Expected deliverables: Endpoint inventory, query project and downloaded data where the service permits it.

We check the integrity, consistency and structure of geographic files, identifying errors and deficiencies.

• Cartographic Metadata and Integrity Report

  Establish the contents of a data delivery.

  Expected deliverables: Metadata report covering CRS, schema, extent and file manifest.

• Pre-Delivery Audit of a GIS Data Package

  Review the contents and potential compatibility issues of a supplied GIS package.

  Expected deliverables: Preflight report, layer inventory, formats, extents, CRS and anomalies.

We crop, align, transform and optimize georeferenced imagery for use in digital projects.

• Alignment of Raster Datasets to a Reference Grid

  Images have different pixel sizes and extents and must be compared on the same grid.

  Expected deliverables: Aligned rasters, reference grid and record of resampling and lost detail.

• Raster Extraction and Mask-Based Clipping

  Extract a selected area from a raster mosaic.

  Expected deliverables: Clipped GeoTIFF with extent, NoData and before/after size report.