模块:WeatherGraph

此模块的文档可以在模块:WeatherGraph/doc创建

local p = {}

-- 简单的柯本气候分类计算器（基于均温和降水）
local function calculateKoppen(temps, precips)
    local t_mean = 0
    local p_total = 0
    local t_hot = -99
    local t_cold = 99
    local p_min_summer = 9999
    local p_max_summer = 0
    local p_min_winter = 9999
    local p_max_winter = 0
    
    local summer_p_total = 0
    local winter_p_total = 0

    for i = 1, 12 do
        local t = tonumber(temps[i]) or 0
        local p = tonumber(precips[i]) or 0
        t_mean = t_mean + t
        p_total = p_total + p
        if t > t_hot then t_hot = t end
        if t < t_cold then t_cold = t end
        
        -- 简单划分夏冬半季（北半球：4-9月为夏，10-3月为冬）
        if i >= 4 and i <= 9 then
            summer_p_total = summer_p_total + p
            if p < p_min_summer then p_min_summer = p end
            if p > p_max_summer then p_max_summer = p end
        else
            winter_p_total = winter_p_total + p
            if p < p_min_winter then p_min_winter = p end
            if p > p_max_winter then p_max_winter = p end
        end
    end
    t_mean = t_mean / 12

    -- 计算干燥阈值 (Pth)
    local pth = 20 * t_mean
    if summer_p_total > (p_total * 0.7) then
        pth = pth + 280
    elseif winter_p_total > (p_total * 0.7) then
        pth = pth
    else
        pth = pth + 140
    end

    -- B类：干旱气候
    if p_total < pth then
        if p_total < (pth / 2) then
            return t_mean >= 18 and "BWh (热带沙漠气候)" or "BWk (温带沙漠气候)"
        else
            return t_mean >= 18 and "BSh (热带草原/半干旱气候)" or "BSk (温带草原/半干旱气候)"
        end
    end

    -- A类：热带气候
    if t_cold >= 18 then
        if (p_min_winter < 60 and p_min_summer < 60) then return "Aw/As (热带干湿季气候)" end
        return "Af (热带雨林气候)"
    end

    -- C类与D类判断逻辑可根据 Hydra System 的具体设定继续细化扩展
    if t_hot >= 10 and t_cold > -3 and t_cold < 18 then
        return "C 类 (温带气候)"
    end
    
    if t_hot >= 10 and t_cold <= -3 then
        return "D 类 (大陆性气候)"
    end

    -- E类：极地气候
    if t_hot < 10 then
        return t_hot > 0 and "ET (苔原气候)" or "EF (冰原气候)"
    end

    return "未分类"
end

function p.render(frame)
    local args = frame:getParent().args
    local months = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}
    local temps = {}
    local precips = {}
    
    for i, m in ipairs(months) do
        table.insert(temps, args[m .. ' mean C'] or 0)
        table.insert(precips, args[m .. ' rain mm'] or 0)
    end
    
    local koppen = calculateKoppen(temps, precips)
    local title = args['location'] or "气候数据"
    
    -- 生成内联 SVG 绘图 (简化示例：实际应用中可动态映射最大值缩放坐标轴)
    local svg = '<svg width="100%" height="200" viewBox="0 0 360 200" style="background:#f8f9fa; border-radius:4px;">'
    -- 绘制柱状图 (降水)
    for i, p_val in ipairs(precips) do
        local height = tonumber(p_val) * 2 -- 降水比例尺映射
        local x = (i - 1) * 30 + 5
        local y = 200 - height
        svg = svg .. string.format('<rect x="%d" y="%d" width="20" height="%d" fill="#87CEFA" />', x, y, height)
    end
    
    -- 绘制折线图 (气温)
    local points = ""
    for i, t_val in ipairs(temps) do
        local x = (i - 1) * 30 + 15
        local y = 200 - (tonumber(t_val) * 4) -- 气温比例尺映射
        points = points .. string.format("%d,%d ", x, y)
    end
    svg = svg .. string.format('<polyline points="%s" fill="none" stroke="#FF6347" stroke-width="3" />', points)
    
    -- 添加点
    for i, t_val in ipairs(temps) do
        local x = (i - 1) * 30 + 15
        local y = 200 - (tonumber(t_val) * 4)
        svg = svg .. string.format('<circle cx="%d" cy="%d" r="4" fill="#DC143C" />', x, y)
    end
    svg = svg .. '</svg>'

    -- 组装 Infobox 结构
    local html = string.format([[
<div style="float: right; clear: right; margin: 0 0 1em 1em; width: 320px; border: 1px solid #c8ccd1; border-radius: 8px; padding: 10px; background-color: var(--background-color-base, #ffffff); box-shadow: 0 2px 4px rgba(0,0,0,0.1); font-size: 90%%;">
    <div style="text-align: center; font-weight: bold; font-size: 1.1em; margin-bottom: 10px; background: #eaecf0; padding: 5px; border-radius: 4px;">%s</div>
    <div style="margin-bottom: 10px;">%s</div>
    <div style="text-align: center; font-weight: bold; color: #54595d;">柯本气候分类：<br><span style="color: #2a4b8d;">%s</span></div>
    <div style="font-size: 0.85em; color: #72777d; text-align: right; margin-top: 8px;">来源：%s</div>
</div>
    ]], title, svg, koppen, args['source'] or "未知")

    return html
end

return p