Aspose.Slides FOSS for Python lets you apply professional-quality visual effects to PowerPoint shapes entirely in Python, with no Microsoft Office and no API keys. This post demonstrates the fill system, 2D effects, and 3D formatting available in the library.

Sistemul de umplere

Fiecare formă are un fill_format care controlează modul în care este pictat interiorul său. Cele cinci tipuri de umplere acoperă întreaga gamă a paletei de design a PowerPoint.

Umplere solidă

Cea mai simplă umplere, o culoare uniformă cu transparență opțională:

from aspose.slides_foss import ShapeType, FillType
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.ROUND_CORNER_RECTANGLE, 100, 100, 400, 150
    )
    shape.add_text_frame("Solid Fill")

    shape.fill_format.fill_type = FillType.SOLID
    shape.fill_format.solid_fill_color.color = Color.from_argb(255, 30, 80, 180)

    prs.save("solid.pptx", SaveFormat.PPTX)

Umplere cu degrade liniar

Punctele de oprire ale degradeului îți permit să treci de la o culoare la alta pe întreaga formă:

from aspose.slides_foss import ShapeType, FillType, GradientShape
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.RECTANGLE, 100, 100, 400, 150
    )

    ff = shape.fill_format
    ff.fill_type = FillType.GRADIENT
    gf = ff.gradient_format
    gf.gradient_shape = GradientShape.LINEAR
    gf.linear_gradient_angle = 90   # top-to-bottom

    gf.gradient_stops.add(0.0, Color.from_argb(255, 30, 80, 180))   # top: blue
    gf.gradient_stops.add(1.0, Color.from_argb(255, 0, 200, 160))   # bottom: teal

    prs.save("gradient.pptx", SaveFormat.PPTX)

2D Visual Effects

Umbră exterioară

Atașează o umbră de cădere semi-transparentă oricărei forme:

from aspose.slides_foss import ShapeType, FillType
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.ROUND_CORNER_RECTANGLE, 100, 100, 350, 150
    )
    shape.add_text_frame("Drop Shadow")

    shape.fill_format.fill_type = FillType.SOLID
    shape.fill_format.solid_fill_color.color = Color.white

    ef = shape.effect_format
    ef.enable_outer_shadow_effect()
    ef.outer_shadow_effect.blur_radius = 12
    ef.outer_shadow_effect.direction = 315   # upper-left
    ef.outer_shadow_effect.distance = 8
    ef.outer_shadow_effect.shadow_color.color = Color.from_argb(100, 0, 0, 0)

    prs.save("shadow.pptx", SaveFormat.PPTX)

Efect de strălucire

Un halou colorat în jurul marginii formei:

from aspose.slides_foss import ShapeType, FillType
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.ELLIPSE, 150, 100, 250, 250
    )
    shape.fill_format.fill_type = FillType.SOLID
    shape.fill_format.solid_fill_color.color = Color.from_argb(255, 20, 60, 140)

    ef = shape.effect_format
    ef.enable_glow_effect()
    ef.glow_effect.radius = 20
    ef.glow_effect.color.color = Color.from_argb(200, 0, 180, 255)

    prs.save("glow.pptx", SaveFormat.PPTX)

3D Formatting

Biselă și Material

Cea three_d_format proprietate conferă oricărei forme plate un aspect tridimensional. Combinați o teșitură cu o presetare de cameră și un material pentru cel mai bogat rezultat:

from aspose.slides_foss import (
    ShapeType, FillType,
    BevelPresetType, CameraPresetType,
    LightRigPresetType, LightingDirection,
    MaterialPresetType,
)
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.RECTANGLE, 150, 150, 300, 130
    )
    shape.add_text_frame("Metal Button")

    # Blue solid fill
    shape.fill_format.fill_type = FillType.SOLID
    shape.fill_format.solid_fill_color.color = Color.from_argb(255, 20, 70, 160)

    # 3D bevel + camera + light + material
    tdf = shape.three_d_format
    tdf.bevel_top.bevel_type = BevelPresetType.CIRCLE
    tdf.bevel_top.width = 10
    tdf.bevel_top.height = 5
    tdf.camera.camera_type = CameraPresetType.PERSPECTIVE_ABOVE
    tdf.light_rig.light_type = LightRigPresetType.BALANCED
    tdf.light_rig.direction = LightingDirection.TOP
    tdf.material = MaterialPresetType.METAL
    tdf.depth = 20

    prs.save("metal-button.pptx", SaveFormat.PPTX)

Combinarea efectelor pe aceeași formă

Umbra și formatarea 3D pot coexista pe o singură formă, permițând designuri „card” finisate:

from aspose.slides_foss import (
    ShapeType, FillType,
    BevelPresetType, CameraPresetType, MaterialPresetType,
)
from aspose.slides_foss.drawing import Color
import aspose.slides_foss as slides
from aspose.slides_foss.export import SaveFormat

with slides.Presentation() as prs:
    shape = prs.slides[0].shapes.add_auto_shape(
        ShapeType.ROUND_CORNER_RECTANGLE, 120, 120, 360, 150
    )
    shape.add_text_frame("Premium Card")

    # Fill
    shape.fill_format.fill_type = FillType.SOLID
    shape.fill_format.solid_fill_color.color = Color.from_argb(255, 30, 80, 180)

    # 3D bevel
    tdf = shape.three_d_format
    tdf.bevel_top.bevel_type = BevelPresetType.CIRCLE
    tdf.bevel_top.width = 8
    tdf.camera.camera_type = CameraPresetType.PERSPECTIVE_ABOVE
    tdf.material = MaterialPresetType.PLASTIC

    # Drop shadow
    ef = shape.effect_format
    ef.enable_outer_shadow_effect()
    ef.outer_shadow_effect.blur_radius = 14
    ef.outer_shadow_effect.direction = 270
    ef.outer_shadow_effect.distance = 8
    ef.outer_shadow_effect.shadow_color.color = Color.from_argb(70, 0, 0, 0)

    prs.save("premium-card.pptx", SaveFormat.PPTX)

Instalare

pip install aspose-slides-foss

Fără instalare Office, fără chei de licență, fără apeluri de rețea; tot procesul are loc local.

Resurse conexe