panda3d.core.FreetypeFont

from panda3d.core import FreetypeFont
class FreetypeFont

Bases: Namable

This is a common base class for both DynamicTextFont and PNMTextMaker. Both of these are utility classes that use the FreeType library to generate glyphs from fonts; this class abstracts out that common wrapper around FreeType.

Inheritance diagram

Inheritance diagram of FreetypeFont

setPointSize(point_size: float) → bool

Sets the point size of the font. This controls the apparent size of the font onscreen. By convention, a 10 point font is about 1 screen unit high.

This should only be called before any characters have been requested out of the font, or immediately after calling clear().

getPointSize() → float

Returns the point size of the font.

setPixelsPerUnit(pixels_per_unit: float) → bool

Set the resolution of the texture map, and hence the clarity of the resulting font. This sets the number of pixels in the texture map that are used for each onscreen unit.

Setting this number larger results in an easier to read font, but at the cost of more texture memory.

This should only be called before any characters have been requested out of the font, or immediately after calling clear().

getPixelsPerUnit() → float

Returns the resolution of the texture map. See setPixelsPerUnit().

setPixelSize(pixel_size: float) → bool

Computes the appropriate pixels_per_unit value to set the size of the font in the texture to the indicated number of pixels. This is just another way to specify pixels_per_unit().

getPixelSize() → float

Returns the size of the font in pixels, as it appears in the texture.

setScaleFactor(scale_factor: float) → bool

Sets the factor by which the font is rendered larger by the FreeType library before being filtered down to its actual size in the texture as specified by setPixelsPerUnit(). This may be set to a number larger than 1.0 to improve the font’s antialiasing (since FreeType doesn’t really do a swell job of antialiasing by itself). There is some performance implication for setting this different than 1.0.

This should only be called before any characters have been requested out of the font, or immediately after calling clear().

getScaleFactor() → float

Returns the antialiasing scale factor. See setScaleFactor().

setNativeAntialias(native_antialias: bool) → None

Sets whether the Freetype library’s built-in antialias mode is enabled. There are two unrelated ways to achieve antialiasing: with Freetype’s native antialias mode, and with the use of a scale_factor greater than one. By default, both modes are enabled.

At low resolutions, some fonts may do better with one mode or the other. In general, Freetype’s native antialiasing will produce less blurry results, but may introduce more artifacts.

getNativeAntialias() → bool

Returns whether Freetype’s built-in antialias mode is enabled. See setNativeAntialias().

getFontPixelSize() → int

This is used to report whether the requested pixel size is being only approximated by a fixed-pixel-size font. This returns 0 in the normal case, in which a scalable font is used, or the fixed-pixel-size font has exactly the requested pixel size.

If this returns non-zero, it is the pixel size of the font that we are using to approximate our desired size.

getLineHeight() → float

Returns the number of units high each line of text is.

getSpaceAdvance() → float

Returns the number of units wide a space is.

static getPointsPerUnit() → float

Returns the point size of the font that is one Panda unit high. This is an arbitrary Panda convention for text, and is set to 10.0.

static getPointsPerInch() → float

Returns the number of points in one inch. This is a universal typographic convention.

setWindingOrder(winding_order: WindingOrder) → None

Specifies an explicitly winding order on this particular font. This is only necessary if the render_mode is RM_polygon or RM_solid, and only if FreeType appears to guess wrong on this font. Normally, you should leave this at WO_default.

getWindingOrder() → WindingOrder

Returns the winding order set via setWindingOrder().

Return type

WindingOrder

property winding_order
Getter

Returns the winding order set via setWindingOrder().

Setter

Specifies an explicitly winding order on this particular font. This is only necessary if the render_mode is RM_polygon or RM_solid, and only if FreeType appears to guess wrong on this font. Normally, you should leave this at WO_default.

Return type

WindingOrder

enum WindingOrder
enumerator WO_default = 0
enumerator WO_left = 1
enumerator WO_right = 2
enumerator WO_invalid = 3