Mapping
Orthomosaic (2D map)
A photogrammetrically (*) orthorectified (**) image produced from a collection of smaller nadir (***) images, where the geometric distortion has been corrected and the imagery has been color balanced to produce a seamless mosaic image. An orthomosaic image is an invaluable tool for planners and developers, enabling them to measure horizontal distances with centimeter accuracy quickly and effectively. It can be particularly useful when planning events that involve the usage of portable buildings or tents, as each structure can be precisely placed in relation to its neighbor. In addition, X and Y coordinates of any specified point can be quickly found. Processed in GeoTIFF format, the orthomosaic image can also be seamlessly placed on a digital map, such as Google Earth Pro. Utilizing orthomosaic images overlaid on maps can create a more comprehensive and precise visual representation of real-world environments. Displayed over Google Earth Pro, one can take advantage of the platform's complimentary dimensioning tools. Starting at just $75, 2D aerial maps can be tailored to any budget given the desired location, map size, and GSD (****).
- St. Augustine of Canterbury Episcopal Church, Oklahoma City14 miles, 4 acres, 495 images, average GSD (****) .59 cm/px. Cost $135
- The Lazy J, Rush Springs, Oklahoma70 miles, 7.6 acres, 769 images, average GSD (****) .84 cm/px. Cost $385
- The Lazy J, Rush Springs, Oklahoma70 miles, 16.4 acres, 1,526 images, average GSD (****) .76 cm/px. Cost $475
Utilizing the surface elevation data obtained from nadir imagery, I am capable of conducting volumetric analyses. An example is the Cut & Fill analysis depicted below. Furthermore, I can calculate stockpile volumes to monitor usage, estimate removal costs, oversee retention pond levels, among other tasks.
Cut and Fill - Utilizing 3D data capture technology enables the estimation of soil volume required for excavation or addition to level terrain to a specified elevation, based on surface elevation data. Project information is provided with each image. Cost starts at $150 with map purchase.
The same technology can also be employed for managing stockpiles, evaluating retention ponds, and other similar applications. The pricing for ongoing services like stockpile management starts at $75 and can differ based on the location and flights per month.
- The Lazy J, Rush Springs, OklahomaIn the example above, the area marked for cutting, shown in red, is estimated to yield approximately 10,000 cubic meters of soil. Conversely, elevating the surface to street level in the specified area would require about 69,000 cubic meters of fill material.Cost $150 with map purchase.The information and pricing details for the map are situated at the top of the page within the mapping section; you can navigate using the slide arrows.
The Lazy J, Rush Springs, Oklahoma
In the example above, the parking lot entrance was relocated, and a building pad was designed to direct drainage runoff away from the structure. Additionally, the cut volume from the retention pond can be deducted from the fill volume required for the building pad.Cost $185 with map purchase.The information and pricing details for the map are situated at the top of the page within the mapping section; you can navigate using the slide arrows.
The surface elevation data can be utilized to generate various topographic map types. These encompass a Digital Surface Model, a Digital Terrain Model, and a Contour Line Overlay, as illustrated below.
A Digital Surface Model (DSM) is a digital representation of the surface and above ground features, such as buildings, vegetation, and other infrastructure. Using a color scale to represent surface elevations is a great way to get a visual representation of the landscape. Hillshade visualization employs shading to create a three-dimensional effect, where each pixel's elevation is denoted by a color value ranging from 0 to 255 on a grayscale.
- St. Augustine of Canterbury Episcopal Church, Oklahoma City Color Scale
- The Lazy J, Rush Springs, Oklahoma Hillshade View
A Digital Terrain Model (DTM) represents the bare earth's surface digitally, excluding features such as buildings and other structures. The examples provided here use a color gradient to represent elevation levels, with dark blue marking the lowest points and dark red the highest. DTMs are valuable for rapid analysis of surface elevations and drainage patterns. Cost starts at $150 with map purchase.
- The Lazy J, Rush Springs, Oklahoma. Cost $150 with map purchase.
- The Lazy J, Rush Springs, Oklahoma. Cost $185 with map purchase.
Contour Lines - These lines connect points of equal elevation on the map. Each contour line represents a specific elevation above sea level. For example, if you follow a single contour line, you’ll remain at the same height throughout your journey. Shown here in meters above sea level (ASL). Cost starts at $150 with map purchase.
- The Lazy J, Rush Springs, Oklahoma. Cost $150 with map purchase.
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