diff --git a/app/admin/nav-documents.tsx b/app/admin/nav-documents.tsx
index 03d5dc6..26d3f4f 100644
--- a/app/admin/nav-documents.tsx
+++ b/app/admin/nav-documents.tsx
@@ -24,6 +24,14 @@ import {
     SidebarMenuItem,
     useSidebar,
 } from "@/components/ui/sidebar"
+import { gql, useQuery } from "@apollo/client"
+import { useEffect } from "react"
+
+const CATE = gql`
+    query GetCategories {
+        settingCategories
+    }
+`
 
 export function NavDocuments({
     items,
@@ -36,16 +44,18 @@ export function NavDocuments({
 }) {
     const { isMobile } = useSidebar()
 
+    const { data, loading, error } = useQuery(CATE)
+
     return (
         <SidebarGroup className="group-data-[collapsible=icon]:hidden">
-            <SidebarGroupLabel>Documents</SidebarGroupLabel>
+            <SidebarGroupLabel>Categories</SidebarGroupLabel>
             <SidebarMenu>
-                {items.map((item) => (
-                    <SidebarMenuItem key={item.name}>
+                {data && data.settingCategories.map((item: string) => (
+                    <SidebarMenuItem key={item}>
                         <SidebarMenuButton asChild>
-                            <a href={item.url}>
-                                <item.icon />
-                                <span>{item.name}</span>
+                            <a href={`/admin/category/${item}`}>
+                                <IconFolder />
+                                <span>{item}</span>
                             </a>
                         </SidebarMenuButton>
                         <DropdownMenu>
diff --git a/components/map-component.tsx b/components/map-component.tsx
index 16055f4..488788f 100644
--- a/components/map-component.tsx
+++ b/components/map-component.tsx
@@ -142,7 +142,16 @@ export function MapComponent({
                                 }
 
                                 vec4 texColor = texture(u_tex, uv);
+
+                                float real_value = texColor.r * 255.0;
+
+                                if (real_value <= 0.0 || real_value >= 75.0) {
+                                    discard;
+                                }
+
                                 float value = texColor.r * 3.4;
+
+                                
                                 value = clamp(value, 0.0, 1.0);
 
                                 // 软阈值，避免全场被 return
diff --git a/lib/color-maps.ts b/lib/color-maps.ts
index 1c0a2b0..606b12e 100644
--- a/lib/color-maps.ts
+++ b/lib/color-maps.ts
@@ -266,21 +266,10 @@ export function createMeteorologicalColorMap(): Uint8Array {
         for (let j = 0; j < colorRanges.length; j++) {
             const range = colorRanges[j];
             if (value >= range.range[0] && value <= range.range[1]) {
-                // 在区间内进行线性插值
-                const localT = (value - range.range[0]) / (range.range[1] - range.range[0]);
-
-                if (j < colorRanges.length - 1) {
-                    const nextRange = colorRanges[j + 1];
-                    // 与下一个颜色进行插值
-                    r = Math.floor(range.color[0] + localT * (nextRange.color[0] - range.color[0]));
-                    g = Math.floor(range.color[1] + localT * (nextRange.color[1] - range.color[1]));
-                    b = Math.floor(range.color[2] + localT * (nextRange.color[2] - range.color[2]));
-                } else {
-                    // 最后一个区间，使用固定颜色
-                    r = range.color[0];
-                    g = range.color[1];
-                    b = range.color[2];
-                }
+                // 使用区间的固定颜色，不进行插值
+                r = range.color[0];
+                g = range.color[1];
+                b = range.color[2];
                 found = true;
                 break;
             }