What is a CGPoint?

A structure that contains a point in a two-dimensional coordinate system.

What coordinate system does iOS use?

The default datum used by iOS location services, and Pro Compass, is WGS-84 (WGS stands for “world geodetic system” and 84 refers to “1984”, the year of this standard). WGS-84 is an ellipsoidal model that approximates the surface of the Earth.

What is CGRect in Swift?

A structure that contains the location and dimensions of a rectangle. macOS 10.0+

What is CGSize Swift?

A CGSize structure is sometimes used to represent a distance vector, rather than a physical size. As a vector, its values can be negative. To normalize a CGRect structure so that its size is represented by positive values, call the standardized function.

What is Cgrectmake?

Returns a rectangle with the specified coordinate and size values.

What is UIEdgeInsets?

UIEdgeInsets encapsulates four different CGFloat values for the inset values of the top, left, bottom, and right (respectively) individually. Positive inset values shrink the content area, while negative inset values will effectively increase it.

What datum does iPhone use?

By default, most GPS receivers and application software use the Lat-Lon-Altitude (LLA) geographic coordinate system based on the WGS84 datum. In this system, the horizontal positions are expressed in terms of angular measurements (degrees, minutes and seconds).

What projection does Apple Maps use?

Mercator map projection
Map Kit uses a Mercator map projection, which is a specific type of cylindrical map projection like the one shown in Figure 5-1. In a cylindrical map projection, the coordinates of a sphere are mapped onto the surface of a cylinder, which is then unwrapped to generate a flat map.

What is a CGPoint in Swift?

CGPoint is a struct used to represent an x and y coordinate in a 2D plane. This post presents examples of how Lottie and Charts, two popular Cocoapods with over 44,000 combined GitHub stars, use CGPoint in Swift: Compute CGRect Corners and Center. Describe A CoreGraphics Path.

What is a view’s frame?

Frame A view’s frame ( CGRect ) is the position of its rectangle in the superview ‘s coordinate system. By default it starts at the top left. Bounds A view’s bounds ( CGRect ) expresses a view rectangle in its own coordinate system.

What is a views frame?

This rectangle defines the size and position of the view in its superview’s coordinate system. Use this rectangle during layout operations to set the size and position the view. Changing the frame rectangle automatically redisplays the view without calling its draw(_:)

What is padding in SwiftUI?

SwiftUI lets us set individual padding around views using the padding() modifier, causing views to be placed further away from their neighbors. If you use this with no parameters you’ll get system-default padding on all sides, like this: VStack { Text(“SwiftUI”) .

Where is cgpoint located in iOS and OS X?

As most of you probably know, CGPoint is a C structure that defines a point in a coordinate system. The origin of this coordinate system is at the top left on iOS and at the bottom left on OS X. In other words, the orientation of its vertical axis differs on iOS and OS X.

How to create a floating point in cgpoint?

Creates a point with coordinates specified as floating-point values. Creates a point with coordinates specified as integer values. Creates a point with coordinates specified as CGFloat values. The point with location (0,0).

Which is the y coordinate of a point?

The x-coordinate of the point. The y-coordinate of the point. Returns the point resulting from an affine transformation of an existing point. Returns whether two points are equal.