ViewWorldProjection

Canonical path: NemAll_Python_IFW_Input.ViewWorldProjection

Implementation of the view - world projection

Methods:

• CreateForUnitTest –

  Create the object for a unit test

• GetDocumentID –

  Get the document ID

• GetEyePoint –

  Get eye point of current projection

• GetIsoProjection –

  Get the isometric projection of the view

• GetMatrix –

  Get the view matrix

• GetPixelFactor –

  Get factor of pixel to world coordinates

• GetScreenScale –

  Get the screen scale

• GetSearchRadiusByPixel –

  Get the search radius by pixel

• GetViewAngle –

  Get the rotation angle of the view

• GetViewPoint –

  Get view point of current projection

• GetViewSize –

  Get the size of the view

• GetViewZAngle –

  Get the rotation angle of the view in z-direction

• GetWindowNumber –

  Get the window number

• GetZoomWindowNumber –

  Get the zoom window number. Numbers 1 and more for active zoom window.

• GetZoomWndTextFac –

  Get the text-factor of the zoom window

• GetZoomWndXFac –

  Get the x-factor of the zoom window

• GetZoomWndYFac –

  Get the y-factor of the zoom window

• IsAssistWindow –

  Check for assist window

• IsCentralProjection –

  Check, whether the projection is a central projection

• IsFreeProjection –

  Check, whether the projection is a free projection

• IsGroundplanView –

  Check, whether the projection is ground plan view

• IsInView –

  Check, whether the point is inside the view

• IsIsometricProjection –

  Check, whether the projection is a isometric projection

• IsSideView –

  Check, whether the projection is a side view

• IsZoomWindow –

  Check if the input is inside the zoom window

• ProjectionToWorld –

  Get the world 3D point from a projection 2D point and a reference point

• SetPointDepth –

  Set point depth by current view projection type and pointWithDepth

• ViewPerpendicularToWorld –

  Transform a view perpendicular point to a world perpendicular point

• ViewToPixel –

  Transform a view point to a pixel coordinate

• ViewToWorld –

  Transform a view point to a world point

• ViewToWorldBaseZ –

  Transform a view point to a world point with resulting z-coordinate

• ViewToWorldBaseZ0 –

  Transform a view point to a world point with resulting z-world = 0

• ViewToWorldPlane –

  Transform the view point to a world plane

• ViewToWorldRay –

  Calculates a ray

• ViewToWorldViewZ –

  Transform a view 2D point with view Z coordinate to a world point

• WorldToPixel –

  Transform the world point to a pixel point

• WorldToProjection –

  dummy, is only needed for the creation of the documentation by MkDocs

• WorldToProjectionBase0 –

  dummy, is only needed for the creation of the documentation by MkDocs

• WorldToView –

  dummy, is only needed for the creation of the documentation by MkDocs

• WorldToView3D –

  Transform a world point to a view 3D point

• WorldToWorldPlane –

  dummy, is only needed for the creation of the documentation by MkDocs

• __init__ –

  dummy, is only needed for the creation of the documentation by MkDocs

CreateForUnitTest staticmethod

CreateForUnitTest(doc: DocumentAdapter) -> ViewWorldProjection

Create the object for a unit test

Parameters:

• doc (DocumentAdapter) –

  Document

Returns:

• ViewWorldProjection –

  created object

GetDocumentID

GetDocumentID() -> int

Get the document ID

Returns:

• int –

  Document ID

GetEyePoint

GetEyePoint() -> Point3D

Get eye point of current projection

Eye point is point where camera is.

Returns:

• Point3D –

  Eye point

GetIsoProjection

GetIsoProjection() -> eProjectionType

Get the isometric projection of the view

Returns:

• eProjectionType –

  Isometric projection of the view

GetMatrix

GetMatrix() -> Matrix3D

Get the view matrix

GetPixelFactor

GetPixelFactor() -> tuple[float, float]

Get factor of pixel to world coordinates

Used when you need calculate how much millimeters are one pixel

Returns:

• tuple[float, float] –

  tuple(Pixel factor in x direction, Pixel factor in y direction)

GetScreenScale

GetScreenScale() -> float

Get the screen scale

Returns:

• float –

  Screen scale

GetSearchRadiusByPixel

GetSearchRadiusByPixel(pixel: int) -> float

Get the search radius by pixel

Parameters:

• pixel (int) –

  Pixel of the search radius

Returns:

• float –

  Search radius in view size

GetViewAngle

GetViewAngle() -> float

Get the rotation angle of the view

Returns:

• float –

  Rotation angle of the view

GetViewPoint

GetViewPoint() -> Point3D

Get view point of current projection

View point is point where you are looking (focused). View point lie in plain of drawn data.

Returns:

• Point3D –

  Eye point

GetViewSize

GetViewSize() -> Vector2D

Get the size of the view

Returns:

• Vector2D –

  Size of the view

GetViewZAngle

GetViewZAngle() -> float

Get the rotation angle of the view in z-direction

Returns:

• float –

  Rotation angle of the view in z-direction

GetWindowNumber

GetWindowNumber() -> int

Get the window number

Returns:

• int –

  Window number

GetZoomWindowNumber

GetZoomWindowNumber() -> int

Get the zoom window number. Numbers 1 and more for active zoom window.

Returns:

• int –

  Window number

GetZoomWndTextFac

GetZoomWndTextFac() -> float

Get the text-factor of the zoom window

Returns:

• float –

  Text-factor of the zoom window

GetZoomWndXFac

GetZoomWndXFac() -> float

Get the x-factor of the zoom window

Returns:

• float –

  X-factor of the zoom window

GetZoomWndYFac

GetZoomWndYFac() -> float

Get the y-factor of the zoom window

Returns:

• float –

  Y-factor of the zoom window

IsAssistWindow

IsAssistWindow() -> bool

Check for assist window

Returns:

• bool –

  The document is an assist window: true/false

IsCentralProjection

IsCentralProjection() -> bool

Check, whether the projection is a central projection

Returns:

• bool –

  Central projection: true/false

IsFreeProjection

IsFreeProjection() -> bool

Check, whether the projection is a free projection

Returns:

• bool –

  Projection is a free view: true/false

IsGroundplanView

IsGroundplanView() -> bool

Check, whether the projection is ground plan view

Returns:

• bool –

  Projection is ground plan view: true/false

IsInView

IsInView(pnt: Point2D) -> bool

Check, whether the point is inside the view

Parameters:

• pnt (Point2D) –

  View point

Returns:

• bool –

  Point is inside the view: true/false

IsIsometricProjection

IsIsometricProjection() -> bool

Check, whether the projection is a isometric projection

Returns:

• bool –

  Projection is a isometric projection: true/false

IsSideView

IsSideView() -> bool

Check, whether the projection is a side view

Returns:

• bool –

  Projection is a side view: true/false

IsZoomWindow

IsZoomWindow() -> bool

Check if the input is inside the zoom window

Returns:

• bool –

  Window number

ProjectionToWorld

ProjectionToWorld(pnt: Point2D, refPnt: Point3D) -> Point3D

Get the world 3D point from a projection 2D point and a reference point

Parameters:

• pnt (Point2D) –

  View Point

• refPnt (Point3D) –

  Reference point with the additional coordinate

Returns:

• Point3D –

  World 3D point

SetPointDepth

SetPointDepth(pointWithDepth: Point3D) -> Point3D

Set point depth by current view projection type and pointWithDepth

Parameters:

• pointWithDepth (Point3D) –

  Point with depth

Returns:

• Point3D –

  Point to set

ViewPerpendicularToWorld

ViewPerpendicularToWorld(line3D: Line3D, pnt: Point3D) -> Point3D

Transform a view perpendicular point to a world perpendicular point

Parameters:

• line3D (Line3D) –

  3D perpendicular line

• pnt (Point3D) –

  Reference point for the perpendicular

Returns:

• Point3D –

  World perpendicular point

ViewToPixel

ViewToPixel(
    pnt: Point2D, bBottomTop: bool, considerZoomwindow: bool = True
) -> Point2D

Transform a view point to a pixel coordinate

Parameters:

• pnt (Point2D) –

  View point

• bBottomTop (bool) –

  The y zero point is on the bottom of the screen: true/false

• considerZoomwindow (bool, default: True ) –

  if true and the position is in a zoom window, then the zoom window will be used for the calculation

Returns:

• Point2D –

  Pixel view point

ViewToWorld

ViewToWorld(pnt: Point2D, z: float = 0) -> Point3D

Transform a view point to a world point

Parameters:

• pnt (Point2D) –

  View point

• z (float, default: 0 ) –

  z-coordinate

Returns:

• Point3D –

  World point

ViewToWorldBaseZ

ViewToWorldBaseZ(pnt: Point2D, zWorld: float) -> Point3D

Transform a view point to a world point with resulting z-coordinate

Parameters:

• pnt (Point2D) –

  View point

• zWorld (float) –

  Z-coordinate

Returns:

• Point3D –

  World point with resulting z-coordinate

ViewToWorldBaseZ0

ViewToWorldBaseZ0(pnt: Point2D) -> Point3D

Transform a view point to a world point with resulting z-world = 0

Parameters:

• pnt (Point2D) –

  View point

Returns:

• Point3D –

  World point with z=0

ViewToWorldPlane

ViewToWorldPlane(pnt: Point2D, plane: Plane3D) -> Point3D

Transform the view point to a world plane

Parameters:

• pnt (Point2D) –

  View point

• plane (Plane3D) –

  Plane

Returns:

• Point3D –

  World point at the plane

ViewToWorldRay

ViewToWorldRay(pnt: Point2D) -> tuple[Point3D, Vector3D]

Calculates a ray

Calculates a ray (for non-vanishing-point-projections, rather a line) from the given view 2D point. Can be used for pick-point calculations.

Note that we have a right-hand view coordinate system, so its Z axis points towards the eye.

Parameters:

• pnt (Point2D) –

  View point

Returns:

• tuple[Point3D, Vector3D] –

  tuple(World point of ray, Vector of calculated ray point)

ViewToWorldViewZ

ViewToWorldViewZ(pnt: Point2D, viewZ: float) -> Point3D

Transform a view 2D point with view Z coordinate to a world point

Parameters:

• pnt (Point2D) –

  View point

• viewZ (float) –

  z-coordinate in view transformation

Returns:

• Point3D –

  World point

WorldToPixel

WorldToPixel(pnt: Point3D, bBottomTop: bool) -> Point2D

Transform the world point to a pixel point

Parameters:

• pnt (Point3D) –

  World point

• bBottomTop (bool) –

  The y zero point is on the bottom of the screen: true/false

Returns:

• Point2D –

  Pixel point

WorldToProjection overloaded

WorldToProjection(pnt: Point3D) -> Point2D

Get the projection 2D point from a world 3D point

Parameters:

• pnt (Point3D) –

  World point

Returns:

• Point2D –

  2D projection point

WorldToProjection(line: Line3D) -> Line2D

Get the projection 2D line from a world 3D line

Parameters:

• line (Line3D) –

  World line

Returns:

• Line2D –

  2D projection line

WorldToProjectionBase0 overloaded

WorldToProjectionBase0(pnt: Point3D) -> Point3D

Get the world projection point with the base 0

Parameters:

• pnt (Point3D) –

  World point

Returns:

• Point3D –

  World projection point with the base 0

WorldToProjectionBase0(line: Line3D) -> Line3D

Get the world projection line with the base 0

Parameters:

• line (Line3D) –

  World coordinate line

Returns:

• Line3D –

  World projection point with the base 0

WorldToView overloaded

WorldToView(pnt: Point3D) -> Point2D

Transform a world point to a view point

Parameters:

• pnt (Point3D) –

  World point

Returns:

• Point2D –

  View point

WorldToView(pnt: Point2D) -> Point2D

Transform a world point to a view point

Parameters:

• pnt (Point2D) –

  World point

Returns:

• Point2D –

  View point

WorldToView(x: float, y: float, z: float) -> Point2D

Transform a world point to a view point

Parameters:

• x (float) –

  X-coordinate world

• y (float) –

  Y-coordinate world

• z (float) –

  Z-coordinate world

Returns:

• Point2D –

  View point

WorldToView(line: Line3D) -> Line2D

Transform a 3D world line to a 2D view line

Parameters:

• line (Line3D) –

  World line

Returns:

• Line2D –

  View line

WorldToView(line: Line2D) -> Line2D

Transform a 2D world line to a 2D view line

Parameters:

• line (Line2D) –

  World line

Returns:

• Line2D –

  View line

WorldToView(polyline3D: Polyline3D) -> Polyline2D

Transform a 3D world polyline to a 2D view polyline

Parameters:

• polyline3D (Polyline3D) –

  World polyline

Returns:

• Polyline2D –

  View polyline

WorldToView3D

WorldToView3D(pnt: Point3D) -> Point3D

Transform a world point to a view 3D point

If Z coordinate of returned view point is positive, then world point is before eye (i.e. is visible).

Parameters:

• pnt (Point3D) –

  World point

Returns:

• Point3D –

  View point

WorldToWorldPlane overloaded

WorldToWorldPlane(pnt: Point3D, plane: Plane3D) -> Point3D

Transform a world point to a plane point

Parameters:

• pnt (Point3D) –

  World point

• plane (Plane3D) –

  Plane

Returns:

• Point3D –

  Plane point in world coordinates

WorldToWorldPlane(line: Line3D, plane: Plane3D) -> Line3D

Transform a world line to a plane line

Parameters:

• line (Line3D) –

  World line

• plane (Plane3D) –

  Plane

Returns:

• Line3D –

  Plane line in world coordinates

__init__ overloaded

__init__()

Initialize

__init__(element: ViewWorldProjection)

Copy constructor

Parameters:

• element (ViewWorldProjection) –

  Element to copy