How do you scale a point?

How do you scale a point?

Usually, to scale about a particular point you first translate the object so that the point is at the origin. You then perform the scaling and then the inverse of the original translation to move the fixed point back to its original position.

What is a point scale factor?

A point scale factor gives the distortion at a specific location for a specified map projection. In the example. below, the scale factor is 1 at the intersection of the ground with the grid, meaning the ground measurement equals the grid. measurement.

How do you find the scale factor of a surveying point?

In GPS, the Scale Factor is applied by dividing the distance between the coordinate and a base point by the Scale Factor. The coordinate is then set by starting from the base point and moving in the direction to the coordinate for the adjusted distance.

What does full scale mean?

adjective. having the exact size or proportions of the original: a full-scale replica. using all possible means, facilities, etc.; complete: The factory will commence full-scale operation next month.

How do you find scale factor distance?

That means the scale factor is the scale comparing distances, not areas. So if 2 cm on the map represents 3 meters, you could write that as a fraction and convert it to a common unit of meters: 0.02 / 3, which you can multiply by 50 / 50 to get the fraction 1 / 150. That’s the scale factor 1 : 150.

What is ground vs grid?

Your surveyor is asking if you want in ground or grid, because ground is what is used in the (real world) if you were in the field measure with a tape . Grid is a measurement from a projection which will have different scale factors applied to your measurements, depending on where you are with in the projection.

How do you find the scale of a map?

First, find yourself a map. Then, using two points, find both the distance on the map and the true distance. Next, you divide the true distance by the measured map distance, and find your scale.

What is gridgrid scale factor and how is it calculated?

Grid Scale Factor, often simply called “Scale Factor” is a measure of distortion at a given point on a projected map. The scale factor is not cartographic scale, but a factor used to calculate actual ellipsoidal distances rather than distances on the projected surface.

What is the difference between orthometric height scale and grid scale factor?

Orthometric height scale will only display when a Vertical Reference is selected. Points in a Geodetic systems do not have a scale or convergence. Grid Scale Factor, often simply called “Scale Factor” is a measure of distortion at a given point on a projected map.

What does the point scale factor do?

The Point Scale Factor can calculate the Elevation scale factor (ESF), Grid scale factor (GSF) and the Combined scale factor (CSF) that derived from multiplied by ESF and GSF.

How to convert points from grid to ground in Revit?

Re: Convert points from grid to ground. Set your coordinate system in the Drawing Settings. While still in the Drawing Settings, click the Transformation tab. Check the box to Apply Transformation Settings. Just to the right, under Grid Scale Factor, change the Computation to User Defined. Then enter your scale factor.