Architectural Exterior & Interior Sketching
Drafting building elevations, streetscapes, interior rooms, and urban corridors with natural visual depth.
1点・2点・3点消失点パースグリッド
Linear perspective approximates how three-dimensional scenes appear to the human eye on a 2D surface. Parallel lines receding into the distance converge at one or more vanishing points (VP) situated on a horizontal horizon line.
x_proj = f · (X / Z), y_proj = f · (Y / Z); Vanishing points at Z → ∞Linear perspective was discovered in Florence during the Italian Renaissance by architect Filippo Brunelleschi in 1415 and codified mathematically by Leon Battista Alberti in his 1435 treatise De Pictura.
GraphPages.com では、すべてのベクター描画処理がブラウザ内で直接実行されるため、用紙余白や目盛りの寸法精度が 0.05 mm 以内に保たれます。
Drafting building elevations, streetscapes, interior rooms, and urban corridors with natural visual depth.
Sketching consumer electronics, power tools, automobiles, and ergonomic hardware concepts in dynamic 3/4 views.
Establishing cinematic camera angles, dynamic background environments, and dramatic wide-angle perspectives.
Teaching foreshortening, eye-level horizon placement, and atmospheric depth in art schools and studios.
Locate the horizontal eye-level line and the left and right vanishing points (VP1 and VP2).
Draw the closest vertical corner of your subject directly on the vertical guide lines between the vanishing points.
Follow the radiating guide rays from the top and bottom of your leading edge toward VP1 (left) and VP2 (right).
Establish the back edges with vertical lines, then sketch window openings, chamfers, and bevels using the perspective rays.
Guide rays radiate from mathematically exact vanishing points situated on the horizon line.
ブラウザ上でこの方眼紙に直接ダイアグラムを描いたり、座標をマークしたり、図形を描画できます。