#include <map.h>

Data Fields
mln_camera_options	camera
mln_logical_extent	extent
mln_projection_mode	projection_mode
mln_map_viewport_options	viewport

Detailed Description

Everything that a projection depends on: the transform that a published snapshot or a rendered frame describes.

Every member is set on output. mln_map_projection_create() reads every member and requires every field of each nested struct, except MLN_CAMERA_OPTION_ANCHOR, which it ignores. Camera constraints are map policy and stay out of the view, because no conversion reads them.

A later version may append members. mln_map_snapshot and mln_render_frame_result embed the view as their last member, so their own size versions that growth.

Field Documentation

◆ camera

mln_camera_options mln_map_view::camera

The camera. Its center is unwrapped: the longitude keeps the visible world copy and may fall outside -180 to 180. Every field except MLN_CAMERA_OPTION_ANCHOR is set.

◆ extent

mln_logical_extent mln_map_view::extent

Logical size and device-pixel scale. A snapshot carries the map's scale factor, and a frame carries the scale factor of the target that drew it.

◆ projection_mode

mln_projection_mode mln_map_view::projection_mode

Axonometric mode and skew, with every field set.

◆ viewport

mln_map_viewport_options mln_map_view::viewport

North orientation, constrain mode, viewport mode, and frustum offset, with every field set.

The documentation for this struct was generated from the following file: