Python core.QgsRuleBasedRenderer类代码示例

OGeek|极客世界-中国程序员成长平台 › 门户 › 编程› Python›Python编程经验

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了Python中qgis.core.QgsRuleBasedRenderer类的典型用法代码示例。如果您正苦于以下问题：Python QgsRuleBasedRenderer类的具体用法？Python QgsRuleBasedRenderer怎么用？Python QgsRuleBasedRenderer使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了QgsRuleBasedRenderer类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: testConvertFromGraduatedRenderer

    def testConvertFromGraduatedRenderer(self):
        # Test converting graduated renderer to rule based

        # First, try with a field based category (id)
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer("id", ranges)

        r = QgsRuleBasedRenderer.convertFromRenderer(g)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" >= 0.000000 AND "id" <= 1.000000')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" > 1.000000 AND "id" <= 2.000000')

        # Next try with an expression based range
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer("id / 2", ranges)

        r = QgsRuleBasedRenderer.convertFromRenderer(g)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '(id / 2) >= 0.000000 AND (id / 2) <= 1.000000')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '(id / 2) > 1.000000 AND (id / 2) <= 2.000000')

        # Last try with an expression which is just a quoted field name
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer('"id"', ranges)

        r = QgsRuleBasedRenderer.convertFromRenderer(g)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" >= 0.000000 AND "id" <= 1.000000')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" > 1.000000 AND "id" <= 2.000000')

开发者ID:，项目名称:，代码行数:32，代码来源:

示例2: testConvertFromCategorisedRenderer

    def testConvertFromCategorisedRenderer(self):
        # Test converting categorised renderer to rule based

        # First, try with a field based category (id)
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "id 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "id 2"))
        cats.append(QgsRendererCategory('a\'b', QgsMarkerSymbol(), "id a'b"))
        cats.append(QgsRendererCategory('a\nb', QgsMarkerSymbol(), "id a\\nb"))
        cats.append(QgsRendererCategory('a\\b', QgsMarkerSymbol(), "id a\\\\b"))
        cats.append(QgsRendererCategory('a\tb', QgsMarkerSymbol(), "id a\\tb"))
        cats.append(QgsRendererCategory(['c', 'd'], QgsMarkerSymbol(), "c/d"))
        c = QgsCategorizedSymbolRenderer("id", cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(len(r.rootRule().children()), 7)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" = 1')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" = 2')
        self.assertEqual(r.rootRule().children()[2].filterExpression(), '"id" = \'a\'\'b\'')
        self.assertEqual(r.rootRule().children()[3].filterExpression(), '"id" = \'a\\nb\'')
        self.assertEqual(r.rootRule().children()[4].filterExpression(), '"id" = \'a\\\\b\'')
        self.assertEqual(r.rootRule().children()[5].filterExpression(), '"id" = \'a\\tb\'')
        self.assertEqual(r.rootRule().children()[6].filterExpression(), '"id" IN (\'c\',\'d\')')

        # Next try with an expression based category
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        cats.append(QgsRendererCategory([3, 4], QgsMarkerSymbol(), "result 3/4"))
        c = QgsCategorizedSymbolRenderer("id + 1", cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(len(r.rootRule().children()), 3)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), 'id + 1 = 1')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), 'id + 1 = 2')
        self.assertEqual(r.rootRule().children()[2].filterExpression(), 'id + 1 IN (3,4)')

        # Last try with an expression which is just a quoted field name
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        cats.append(QgsRendererCategory([3, 4], QgsMarkerSymbol(), "result 3/4"))
        c = QgsCategorizedSymbolRenderer('"id"', cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(len(r.rootRule().children()), 3)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" = 1')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" = 2')
        self.assertEqual(r.rootRule().children()[2].filterExpression(), '"id" IN (3,4)')

开发者ID:jonnyforestGIS，项目名称:QGIS，代码行数:49，代码来源:test_qgsrulebasedrenderer.py

示例3: testRefineWithRanges

    def testRefineWithRanges(self):
        # Test refining rule with ranges (refs #10815)

        # First, try with a field based category (id)
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer("id", ranges)

        QgsRuleBasedRenderer.refineRuleRanges(self.r2, g)
        assert self.r2.children()[0].filterExpression() == '"id" >= 0.0000 AND "id" <= 1.0000'
        assert self.r2.children()[1].filterExpression() == '"id" > 1.0000 AND "id" <= 2.0000'

        # Next try with an expression based range
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer("id / 2", ranges)

        QgsRuleBasedRenderer.refineRuleRanges(self.r1, g)
        assert self.r1.children()[0].filterExpression() == '(id / 2) >= 0.0000 AND (id / 2) <= 1.0000'
        assert self.r1.children()[1].filterExpression() == '(id / 2) > 1.0000 AND (id / 2) <= 2.0000'

        # Last try with an expression which is just a quoted field name
        ranges = []
        ranges.append(QgsRendererRange(0, 1, QgsMarkerSymbol(), "0-1"))
        ranges.append(QgsRendererRange(1, 2, QgsMarkerSymbol(), "1-2"))
        g = QgsGraduatedSymbolRenderer('"id"', ranges)

        QgsRuleBasedRenderer.refineRuleRanges(self.r3, g)
        assert self.r3.children()[0].filterExpression() == '"id" >= 0.0000 AND "id" <= 1.0000'
        assert self.r3.children()[1].filterExpression() == '"id" > 1.0000 AND "id" <= 2.0000'

开发者ID:，项目名称:，代码行数:32，代码来源:

示例4: testRefineWithCategories

    def testRefineWithCategories(self):
        # Test refining rule with categories (refs #10815)

        # First, try with a field based category (id)
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "id 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "id 2"))
        c = QgsCategorizedSymbolRenderer("id", cats)

        QgsRuleBasedRenderer.refineRuleCategories(self.r2, c)
        assert self.r2.children()[0].filterExpression() == '"id" = 1'
        assert self.r2.children()[1].filterExpression() == '"id" = 2'

        # Next try with an expression based category
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        c = QgsCategorizedSymbolRenderer("id + 1", cats)

        QgsRuleBasedRenderer.refineRuleCategories(self.r1, c)
        assert self.r1.children()[0].filterExpression() == 'id + 1 = 1'
        assert self.r1.children()[1].filterExpression() == 'id + 1 = 2'

        # Last try with an expression which is just a quoted field name
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        c = QgsCategorizedSymbolRenderer('"id"', cats)

        QgsRuleBasedRenderer.refineRuleCategories(self.r3, c)
        assert self.r3.children()[0].filterExpression() == '"id" = 1'
        assert self.r3.children()[1].filterExpression() == '"id" = 2'

开发者ID:，项目名称:，代码行数:32，代码来源:

示例5: testConvertFromCategorisedRenderer

    def testConvertFromCategorisedRenderer(self):
        # Test converting categorised renderer to rule based

        # First, try with a field based category (id)
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "id 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "id 2"))
        cats.append(QgsRendererCategory("a'b", QgsMarkerSymbol(), "id a'b"))
        cats.append(QgsRendererCategory("a\nb", QgsMarkerSymbol(), "id a\\nb"))
        cats.append(QgsRendererCategory("a\\b", QgsMarkerSymbol(), "id a\\\\b"))
        cats.append(QgsRendererCategory("a\tb", QgsMarkerSymbol(), "id a\\tb"))
        c = QgsCategorizedSymbolRenderer("id", cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" = 1')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" = 2')
        self.assertEqual(r.rootRule().children()[2].filterExpression(), "\"id\" = 'a''b'")
        self.assertEqual(r.rootRule().children()[3].filterExpression(), "\"id\" = 'a\\nb'")
        self.assertEqual(r.rootRule().children()[4].filterExpression(), "\"id\" = 'a\\\\b'")
        self.assertEqual(r.rootRule().children()[5].filterExpression(), "\"id\" = 'a\\tb'")

        # Next try with an expression based category
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        c = QgsCategorizedSymbolRenderer("id + 1", cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), "id + 1 = 1")
        self.assertEqual(r.rootRule().children()[1].filterExpression(), "id + 1 = 2")

        # Last try with an expression which is just a quoted field name
        cats = []
        cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
        cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
        c = QgsCategorizedSymbolRenderer('"id"', cats)

        r = QgsRuleBasedRenderer.convertFromRenderer(c)
        self.assertEqual(r.rootRule().children()[0].filterExpression(), '"id" = 1')
        self.assertEqual(r.rootRule().children()[1].filterExpression(), '"id" = 2')

开发者ID:，项目名称:，代码行数:40，代码来源:

注：本文中的qgis.core.QgsRuleBasedRenderer类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花

握手

雷人

路过

鸡蛋

该文章已有0人参与评论

请发表评论

全部评论

专题导读

More+

10-27 六六分期app的软件客服如何联系？(六六分期

11-06 可心卡盟:win10系统火狐flash插件崩溃怎么

11-06 亲亲特价:怎么删除回收站图标

11-06 济南大学虚拟社区:鲁大师节能降温的具体办

11-06 xlueops.exe:无线网络安装向导

11-06 女斗合众国:win7系统cf与主机连接不稳定怎

11-06 0xc000022-[cf烟雾头]cf怎么调烟雾头

11-06 qizideyouhuo:应用程序无法正常启动0xc0000

11-06 ipz-185:win7系统vcf文件怎么打开

11-06 傻哥蹦迪:win10系统s4怎么打开usb调试

11-06 八神浩树gtaste:回收站清空了怎么恢复

11-06 妖尾之黑色守护:win10系统电脑没有1440x900

11-06 校园至尊魔王小说:win7系统浏览网页时字体

11-06 女斗合众国:win10系统访问共享文件夹提示请

11-06 tokyo hot n0654:恢复win7系统默认字体一招

11-06 雨酷仙境:设置win7系统转移临时文件夹腾出

11-06 阿穆纳伊之杖:win7系统开始菜单在右边还原

11-06 tunespotting:win10系统火狐flash插件总是

11-06 甘尔葛分析师：计谋网站seo关键词暴涨有什

11-06 蔡贵霖: 计谋网站seo关键词暴涨有什么秘密

11-06 博益网首页:ao3网页版进入不了解决方法

11-06 漏斗子专栏: 网站数据分析小白易懂精华篇

11-06 见证双虹怎么做:win7系统开启telnet命令的

11-06 颾狐蝶蜋:系统资源不足无法完成请求的服务

11-06 国光中学校歌:提交网站到alexa查询详细步骤

11-06 西安有情天:静态网页和动态网页的区别

11-06 红木雅尚斋:外部链接构造对网站的好处

11-06 前官礼遇：防止域名劫持–增强域安全性的10

11-06 密传二转答案: 中文分词算法有哪些

11-06 金泉家园邮编:百度快照劫持的表现及应对方

Python core.QgsSQLStatement类代码示例发布时间：2022-05-26

Python core.QgsReportSectionLayout类代码示例发布时间：2022-05-26

Python util.grid_equal函数代码示例

1 Python 入门教程

Python入门教程 Python 是一种解释型、面向对象、动态数据类型的高级程序设计语言。 P

阅读：13788|2022-01-22

2 Python wikiutil.getFrontPage函数代码示例

Python wikiutil.getFrontPage函数代码示例

阅读：10177|2022-05-24

3 Python 简介

Python 简介 Python 是一个高层次的结合了解释性、编译性、互动性和面向对象的脚本

阅读：4076|2022-01-22

4 Python tests.group函数代码示例

Python tests.group函数代码示例

阅读：4039|2022-05-27

5 Python util.check_if_user_has_permission

Python util.check_if_user_has_permission函数代码示例

阅读：3832|2022-05-27

6 Python 操练实例98

Python 练习实例98 Python 100例题目：从键盘输入一个字符串，将小写字母全部转换成大

阅读：3508|2022-01-22

7 Python 环境搭建

Python 环境搭建本章节我们将向大家介绍如何在本地搭建 Python 开发环境。 Py

阅读：3029|2022-01-22

8 Python output.darkgreen函数代码示例

Python output.darkgreen函数代码示例

阅读：2646|2022-05-25

9 Python 基础语法

Python 基础语法 Python 语言与 Perl，C 和 Java 等语言有许多相似之处。但是，也

阅读：2636|2022-01-22

10 Python 中文编码

Python 中文编码前面章节中我们已经学会了如何用 Python 输出 Hello, World!，英文没

阅读：2293|2022-01-22

客服电话

电子邮件

Python core.QgsRuleBasedRenderer类代码示例

示例1: testConvertFromGraduatedRenderer

示例2: testConvertFromCategorisedRenderer

示例3: testRefineWithRanges

示例4: testRefineWithCategories

示例5: testConvertFromCategorisedRenderer

请发表评论

全部评论

上一篇：

下一篇：

Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.get_stdout函数代码示例

关于我们

产品与服务

解决方案

139-2527-9053