{"slug":"l-system-plants","title":{"ja":"L-system・植物","en":"L-system plants"},"summary":{"ja":"簡単な書き換えの規則を繰り返して描く、枝分かれする植物と、黄金角で並ぶ葉や種。","en":"Branching plants drawn by repeating simple rewriting rules, with leaves and seeds set at the golden angle."},"categories":["art","motion"],"subAspects":["generative.technique"],"aspects":["generative"],"tags":["l-system","fractal-plant","phyllotaxis","branching"],"palette":[{"name":"Black","hex":"#05070A","ratio":0.78},{"name":"Gold","hex":"#F2C04F","ratio":0.1},{"name":"Green","hex":"#5BE38A","ratio":0.08},{"name":"Magenta","hex":"#E24BB2","ratio":0.04}],"keywords":["L-system","fractal plant","phyllotaxis","golden angle","branching structure","botanical generative art"],"traits":{"en":["A plant grows from one stem by repeatedly branching at a fixed angle (about 25°), with smaller copies of the same shape at every level","Branches thin out and lean toward the tips; the outline is irregular but self-similar","Seeds or florets spiral outward from a centre at the golden angle (137.5°), forming crossing spiral arms","Thin glowing lines in gold and green on a near-black background","In motion, the plant grows branch by branch"],"ja":["1本の茎から一定の角度（約25°）で枝分かれを繰り返し、どの段にも同じ形の小さな写しがある","枝は先ほど細く、傾いていく。輪郭は不ぞろいだが、自己相似になっている","種や小花は中心から黄金角（137.5°）で外へ並び、交差するらせんの腕になる","ほぼ黒の地に、金と緑の細く光る線","動きでは、植物が枝ごとに伸びていく"]},"prompt":"L-system plant: a fractal plant grown from one stem by repeated branching at about 25°, self-similar at every level, branches thinning toward the tips, beside a phyllotaxis disc of florets spiralling out at the golden angle 137.5°, thin glowing gold and green lines on a near-black background. As video, the plant grows branch by branch.","negativePrompt":"photograph of a real plant, leaves with texture, cartoon tree, white background, thick trunk","contrasts":[],"images":[],"references":[{"label":"py5-media-art — lsystem_tree","url":"https://github.com/asamiile/py5-media-art/tree/main/sketch/lsystem_tree"},{"label":"py5-media-art — barnsley_fern","url":"https://github.com/asamiile/py5-media-art/tree/main/sketch/barnsley_fern"}],"links":{"page":{"ja":"https://visual-gallery.asami.tokyo/ja/styles/l-system-plants","en":"https://visual-gallery.asami.tokyo/en/styles/l-system-plants"},"json":"https://visual-gallery.asami.tokyo/api/v1/styles/l-system-plants","markdown":"https://visual-gallery.asami.tokyo/api/v1/styles/l-system-plants/md"}}