{"id":2050,"date":"2026-07-27T03:14:24","date_gmt":"2026-07-27T03:14:24","guid":{"rendered":"https:\/\/www.vpascode.com\/pt\/docs\/uncategorized\/theme-river-chart-continuous-categorical-flow-and-trend-analysis-guide\/"},"modified":"2026-07-27T03:14:24","modified_gmt":"2026-07-27T03:14:24","slug":"theme-river-chart-continuous-categorical-flow-and-trend-analysis-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/pt\/docs\/vpascode-docs\/theme-river-chart-continuous-categorical-flow-and-trend-analysis-guide\/","title":{"rendered":"Gr\u00e1fico de Rio de Temas: An\u00e1lise de Fluxo e Tend\u00eancia Categ\u00f3rica Cont\u00ednua"},"content":{"rendered":"

Quando rastreia como m\u00falticas categorias cont\u00ednuas evoluem ao longo do tempo \u2014 como vendas de produtos ao longo dos trimestres, tend\u00eancias de t\u00f3picos em coberturas jornal\u00edsticas ou padr\u00f5es de consumo de m\u00eddia \u2014 o Gr\u00e1fico de Rio de Temas<\/strong> (uma forma especializada de streamgraph) oferece uma apresenta\u00e7\u00e3o intuitiva e visualmente impactante. Diferentemente dos gr\u00e1ficos de \u00e1rea empilhados padr\u00e3o que se fixam em uma base plana, um gr\u00e1fico de rio de temas flui horizontalmente em torno de um eixo central, criando uma visualiza\u00e7\u00e3o org\u00e2nica, semelhante a um rio, onde os fluxos individuais se ampliam ou se reduzem com base em mudan\u00e7as nos valores quantitativos.<\/p>\n

Os Mecanismos dos Gr\u00e1ficos de Rio de Temas<\/h2>\n

No Apache ECharts, os gr\u00e1ficos de rio de temas usam type: 'themeRiver'<\/code>. Em vez de depender das configura\u00e7\u00f5es tradicionais xAxis<\/code> e yAxis<\/code>, o gr\u00e1fico opera com um \u00fanico eixo horizontal singleAxis<\/code> com type: 'time'<\/code> ou type: 'value'<\/code>. Os itens de dados s\u00e3o passados como tuplas de array formatadas como [time, value, categoryName]<\/code>.<\/p>\n

1. Configura\u00e7\u00e3o B\u00e1sica<\/h3>\n

Para criar um gr\u00e1fico de rio de temas b\u00e1sico, configure um singleAxis<\/code> do tipo 'time'<\/code>, especifique type: 'themeRiver'<\/code> em sua s\u00e9rie e forne\u00e7a suas observa\u00e7\u00f5es de fluxo no array data<\/code> array:<\/p>\n

\n
\nECharts<\/span>
\n
\n<\/path><\/path><\/svg>
\nEditar ECharts no VPasCode<\/span>
\n<\/a>\n<\/div>\n
\n
\r\n
\r\n ECharts<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit ECharts in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
option = {\r\n    tooltip: {\r\n        trigger: 'axis',\r\n        axisPointer: {\r\n            type: 'line',\r\n            lineStyle: {\r\n                color: 'rgba(0,0,0,0.2)',\r\n                width: 1,\r\n                type: 'solid'\r\n            }\r\n        }\r\n    },\r\n    legend: {\r\n        data: ['Tecnologia', 'Moda', 'Esportes']\r\n    },\r\n    singleAxis: {\r\n        top: 50,\r\n        bottom: 50,\r\n        axisTick: {},\r\n        axisLabel: {},\r\n        type: 'time',\r\n        axisPointer: {\r\n            animation: true,\r\n            label: { show: true }\r\n        },\r\n        splitLine: {\r\n            show: true,\r\n            lineStyle: {\r\n                type: 'dashed',\r\n                opacity: 0.5\r\n            }\r\n        }\r\n    },\r\n    series: [\r\n        {\r\n            type: 'themeRiver',\r\n            emphasis: {\r\n                itemStyle: {\r\n                    shadowBlur: 20,\r\n                    shadowColor: 'rgba(0, 0, 0, 0.3)'\r\n                }\r\n            },\r\n            data: [\r\n                ['2026-01-01', 12, 'Tecnologia'],\r\n                ['2026-02-01', 24, 'Tecnologia'],\r\n                ['2026-03-01', 32, 'Tecnologia'],\r\n                ['2026-04-01', 18, 'Tecnologia'],\r\n                ['2026-01-01', 15, 'Moda'],\r\n                ['2026-02-01', 18, 'Moda'],\r\n                ['2026-03-01', 10, 'Moda'],\r\n                ['2026-04-01', 25, 'Moda'],\r\n                ['2026-01-01', 8, 'Esportes'],\r\n                ['2026-02-01', 12, 'Esportes'],\r\n                ['2026-03-01', 28, 'Esportes'],\r\n                ['2026-04-01', 20, 'Esportes']\r\n            ]\r\n        }\r\n    ]\r\n};<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nEditar ECharts no VPasCode<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
T\u00e9cnicas Estruturais Avan\u00e7adas<\/h2>\n
Gr\u00e1ficos de Rio de Temas se destacam ao monitorar eventos complexos de m\u00faltiplas categorias ao longo de sequ\u00eancias de tempo longas, com tooltips personalizados e paletas de categorias estilizadas.<\/p>\n
1. Fluxo de Volume de M\u00eddia em V\u00e1rios Fluxos<\/h3>\n
Personalizar as cores dos fluxos com mapeamentos expl\u00edcitos de paleta e tooltips personalizados para o eixo transformam registros brutos de eventos em uma linha do tempo de atividade limpa:<\/p>\n
\n
\nECharts<\/span>
\n
\n<\/path><\/path><\/svg>
\nEditar ECharts no VPasCode<\/span>
\n<\/a>\n<\/div>\n
\n            
\r\n                                
\r\n                    ECharts<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
const categories = ['Artigos', 'Visualiza\u00e7\u00f5es de V\u00eddeo', 'Reprodu\u00e7\u00f5es de Podcast', 'Compartilhamentos Sociais'];\r\n\r\noption = {\r\n    title: {\r\n        text: 'Fluxos de Engajamento com Conte\u00fado',\r\n        left: 'center'\r\n    },\r\n    tooltip: {\r\n        trigger: 'axis',\r\n        axisPointer: {\r\n            type: 'line',\r\n            lineStyle: {\r\n                color: '#333',\r\n                width: 1\r\n            }\r\n        }\r\n    },\r\n    legend: {\r\n        data: categories,\r\n        bottom: 10\r\n    },\r\n    color: ['#5470c6', '#91cc75', '#fac858', '#ee6666'],\r\n    singleAxis: {\r\n        top: '15%',\r\n        bottom: '20%',\r\n        type: 'time',\r\n        axisLine: { lineStyle: { color: '#ccc' } },\r\n        splitLine: { show: false }\r\n    },\r\n    series: [\r\n        {\r\n            type: 'themeRiver',\r\n            label: {\r\n                show: true,\r\n                position: 'left',\r\n                fontSize: 12\r\n            },\r\n            data: [\r\n                ['2026-01-01', 120, 'Artigos'], ['2026-02-01', 200, 'Artigos'], ['2026-03-01', 150, 'Artigos'], ['2026-04-01', 80, 'Artigos'],\r\n                ['2026-01-01', 60, 'Visualiza\u00e7\u00f5es de V\u00eddeo'], ['2026-02-01', 140, 'Visualiza\u00e7\u00f5es de V\u00eddeo'], ['2026-03-01', 220, 'Visualiza\u00e7\u00f5es de V\u00eddeo'], ['2026-04-01', 310, 'Visualiza\u00e7\u00f5es de V\u00eddeo'],\r\n                ['2026-01-01', 30, 'Reprodu\u00e7\u00f5es de Podcast'], ['2026-02-01', 45, 'Reprodu\u00e7\u00f5es de Podcast'], ['2026-03-01', 90, 'Reprodu\u00e7\u00f5es de Podcast'], ['2026-04-01', 110, 'Reprodu\u00e7\u00f5es de Podcast'],\r\n                ['2026-01-01', 180, 'Compartilhamentos Sociais'], ['2026-02-01', 110, 'Compartilhamentos Sociais'], ['2026-03-01', 70, 'Compartilhamentos Sociais'], ['2026-04-01', 95, 'Compartilhamentos Sociais']\r\n            ]\r\n        }\r\n    ]\r\n};<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit ECharts in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nEditar ECharts no VPasCode<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
Melhores Pr\u00e1ticas Estrat\u00e9gicas<\/h2>\n
    \n
  • Formate as Tuplas de Dados Corretamente:<\/strong> Cada entrada no data<\/code> array deve seguir a ordem exata [data, valor, nomeCategoria]<\/code> para que o ECharts possa cortar e empilhar corretamente os fluxos cont\u00ednuos.<\/li>\n
  • Limite a Dispers\u00e3o de Categorias:<\/strong> Mantenha o n\u00famero de categorias distintas entre 3 e 7. Muitos fluxos tornam as faixas individuais estreitas e dif\u00edceis de rastrear ao longo dos pontos no tempo.<\/li>\n
  • Aproveite o singleAxis<\/code> Dimensionamento:<\/strong> Ajuste topo<\/code> e base<\/code> no singleAxis<\/code> propriedade para controlar o preenchimento vertical e evitar que r\u00f3tulos externos da sequ\u00eancia sejam cortados nas bordas do cont\u00eainer.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    Quando rastreia como m\u00falticas categorias cont\u00ednuas evoluem ao longo do tempo \u2014 como vendas de produtos ao longo dos trimestres, tend\u00eancias de t\u00f3picos em coberturas jornal\u00edsticas ou padr\u00f5es de consumo de m\u00eddia \u2014 o Gr\u00e1fico de Rio de Temas (uma…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":24,"template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"ld_collection":[14],"class_list":["post-2050","ld_docs","type-ld_docs","status-publish","hentry","ld_collection-vpascode-docs"],"yoast_head":"\nECharts Theme River Guide | VPasCode Text to Diagram Guide<\/title>\n<meta name=\"description\" content=\"Visualize continuous thematic changes over time using ECharts theme river charts in VPasCode, a diagram-as-code tool.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vpascode.com\/pt\/docs\/vpascode-docs\/theme-river-chart-continuous-categorical-flow-and-trend-analysis-guide\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ECharts Theme River Guide | VPasCode Text to Diagram Guide\" \/>\n<meta property=\"og:description\" content=\"Visualize continuous thematic changes over time using ECharts theme river charts in VPasCode, a diagram-as-code tool.\" \/>\n<meta property=\"og:url\" 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