06.09.2023 - ЖЗГ

Синхронный запрос через fetch

06.09.2023 Павел Грибов WEB

Да, знаю, плохо, отвратительно и всё такое. Но иногда нужно. Например мне понадобилось при написании Service Worker, для возможности подмены запрашиваемого для загрузки url.. Реализовал так:

self.addEventListener('fetch', (event) => {    
    console.log('Запрашиваем URL: '+event.request.url);    
    (async () => {
        res=await postData("woodpecker.php", { "url": event.request.url});
    })();
    console.log("--получили ответ");
    if (res.error===false){
        console.log("Отдаём URL");
        if ( event.request.url.endsWith( '.png' ) ) {
           return event.respondWith(
             fetch( 'm.jpg' )
           );
         }        
    } else {
        return event;
    };
            
});

async function postData(url = "", data = {}) {
   console.log("-отправляем в "+url);
  // Default options are marked with *
  const response = await fetch(url, {
    method: "POST", 
    headers: {
      'Accept': 'application/json',
      'Content-Type': 'application/x-www-form-urlencoded', 
    },
    body: "data="+JSON.stringify(data), 
  });
  return await response.json();
}

self.addEventListener('fetch', (event) => {

console.log('Запрашиваем URL: '+event.request.url);

(async () => {

res=await postData("woodpecker.php", { "url": event.request.url});

})();

console.log("--получили ответ");

if (res.error===false){

console.log("Отдаём URL");

if ( event.request.url.endsWith( '.png' ) ) {

return event.respondWith(

fetch( 'm.jpg' )

);

}

} else {

return event;

};

});

async function postData(url = "", data = {}) {

console.log("-отправляем в "+url);

// Default options are marked with *

const response = await fetch(url, {

method: "POST",

headers: {

'Accept': 'application/json',

'Content-Type': 'application/x-www-form-urlencoded',

body: "data="+JSON.stringify(data),

});

return await response.json();

}

Оставить комментарий javascript, ServiceWorker, sync fetch

Map api yandex: иконка кластера в виде круговой диаграммы

06.09.2023 Павел Грибов WEB

Задача: отобразить на карте иконки кластеров в виде диаграммы построенной на основании сумм неких значений

Решение:

Используя библиотеку PieChartGD.php создадим файл вывода картинки (PHP):

<?php
include_once '../../SamChristy/PieChart/PieChartGD.php';

use SamChristy\PieChart\PieChartGD;

$chart = new PieChartGD(300, 300);

$chart->setLegend(false);

$sausages_6=$_GET["sausages_6"];
$sausages_6_12=$_GET["sausages_6_12"];
$sausages_more_12=$_GET["sausages_more_12"];

$max=$sausages_6+$sausages_12+$sausages_more_12;
$pers_6=round($sausages_6*100/$max);
$pers_6_12=round($sausages_6_12*100/$max);
$pers_more_12=round($sausages_more_12*100/$max);

$chart->addSlice('sausages_6', $pers_6, '#0a9b0e');
$chart->addSlice('sausages_6_12',    $pers_6_12, '#f3a61f');
$chart->addSlice('sausages_more_12',$pers_more_12, '#f31f1f');

$chart->draw();
$chart->outputPNG();

<?php

include_once '../../SamChristy/PieChart/PieChartGD.php';

use SamChristy\PieChart\PieChartGD;

$chart = new PieChartGD(300, 300);

$chart->setLegend(false);

$sausages_6=$_GET["sausages_6"];

$sausages_6_12=$_GET["sausages_6_12"];

$sausages_more_12=$_GET["sausages_more_12"];

$max=$sausages_6+$sausages_12+$sausages_more_12;

$pers_6=round($sausages_6*100/$max);

$pers_6_12=round($sausages_6_12*100/$max);

$pers_more_12=round($sausages_more_12*100/$max);

$chart->addSlice('sausages_6', $pers_6, '#0a9b0e');

$chart->addSlice('sausages_6_12', $pers_6_12, '#f3a61f');

$chart->addSlice('sausages_more_12',$pers_more_12, '#f31f1f');

$chart->draw();

$chart->outputPNG();

Далее создадим функцию отображения кластера (JavaScript):

function SetClusterProp(ob){
    console.log("-настраиваю иконки кластера");

   ob.clusters.options.set({
        gridSize: 800,
        groupByCoordinates: true,
        clusterDisableClickZoom: true,
        clusterIcons: [{
            href: 'images/m1.png',
            size: [50, 50],            
            offset: [-25, -25]
        }]
    });
    ob.clusters.events.add('click', function (e) {
          console.log("Кликнули по кластеру");
          click_cluster = e.get('target');//.state.get('activeObject')
    });
    ob.clusters.events.add('add', function (e) { 
       var cluster = ob.clusters.getById(e.get('objectId')),
        objects = cluster.properties.geoObjects;
        if (objects.length >= 20 && objects.length < 100) {       
            dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;
            for (var i = 0; i < objects.length; i++) {
              dz=dz+objects[i].properties.dz;
              sausages=sausages+objects[i].properties.sausages;
              sausages_6=sausages_6+objects[i].properties.sausages_6;
              sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;
              sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;
            };            
            ob.clusters.setClusterOptions(cluster.id, {
                clusterIcons: [{
                    href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,
                    size: [45, 45],            
                    offset: [-22.5, -22.5]
                }]
            });
        }
        if (objects.length >= 100 && objects.length < 1000) {       
            dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;
            for (var i = 0; i < objects.length; i++) {
              dz=dz+objects[i].properties.dz;
              sausages=sausages+objects[i].properties.sausages;
              sausages_6=sausages_6+objects[i].properties.sausages_6;
              sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;
              sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;
            };
            ob.clusters.setClusterOptions(cluster.id, {
                clusterIcons: [{
                    href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,
                    size: [55, 55],            
                    offset: [-22.5, -22.5]
                }]
            });
        }
        if (objects.length >= 1000) {       
            dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;
            for (var i = 0; i < objects.length; i++) {
              dz=dz+objects[i].properties.dz;
              sausages=sausages+objects[i].properties.sausages;
              sausages_6=sausages_6+objects[i].properties.sausages_6;
              sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;
              sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;
            };                   
            ob.clusters.setClusterOptions(cluster.id, {
                clusterIcons: [{
                    href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,
                    size: [65, 65],            
                    offset: [-22.5, -22.5]
                }]
            });
        }

    });        
  return ob;
}

function SetClusterProp(ob){

console.log("-настраиваю иконки кластера");

ob.clusters.options.set({

gridSize: 800,

groupByCoordinates: true,

clusterDisableClickZoom: true,

clusterIcons: [{

href: 'images/m1.png',

size: [50, 50],

offset: [-25, -25]

}]

});

ob.clusters.events.add('click', function (e) {

console.log("Кликнули по кластеру");

click_cluster = e.get('target');//.state.get('activeObject')

});

ob.clusters.events.add('add', function (e) {

var cluster = ob.clusters.getById(e.get('objectId')),

objects = cluster.properties.geoObjects;

if (objects.length >= 20 && objects.length < 100) {

dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;

for (var i = 0; i < objects.length; i++) {

dz=dz+objects[i].properties.dz;

sausages=sausages+objects[i].properties.sausages;

sausages_6=sausages_6+objects[i].properties.sausages_6;

sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;

sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;

};

ob.clusters.setClusterOptions(cluster.id, {

clusterIcons: [{

href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,

size: [45, 45],

offset: [-22.5, -22.5]

}]

});

}

if (objects.length >= 100 && objects.length < 1000) {

dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;

for (var i = 0; i < objects.length; i++) {

dz=dz+objects[i].properties.dz;

sausages=sausages+objects[i].properties.sausages;

sausages_6=sausages_6+objects[i].properties.sausages_6;

sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;

sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;

};

ob.clusters.setClusterOptions(cluster.id, {

clusterIcons: [{

href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,

size: [55, 55],

offset: [-22.5, -22.5]

}]

});

}

if (objects.length >= 1000) {

dz=0;sausages=0;sausages_6=0;sausages_6_12=0;sausages_more_12=0;

for (var i = 0; i < objects.length; i++) {

dz=dz+objects[i].properties.dz;

sausages=sausages+objects[i].properties.sausages;

sausages_6=sausages_6+objects[i].properties.sausages_6;

sausages_6_12=sausages_6_12+objects[i].properties.sausages_6_12;

sausages_more_12=sausages_more_12+objects[i].properties.sausages_more_12;

};

ob.clusters.setClusterOptions(cluster.id, {

clusterIcons: [{

href: 'images/pie.php?sausages='+sausages+"&sausages_6="+sausages_6+"&sausages_6_12="+sausages_6_12+"&sausages_more_12="+sausages_more_12,

size: [65, 65],

offset: [-22.5, -22.5]

}]

});

}

});

return ob;

}

И перед началом отрисовки меток, настроим кластеризацию:

 // настройки кластеризакции
    objectManager = new ymaps.ObjectManager({
        gridSize: 120,
        clusterDisableClickZoom: true,
        geoObjectOpenBalloonOnClick: true,
        minClusterSize: 2,
        showInAlphabeticalOrder: false,
        viewportMargin: 128,
        zoomMargin: 0,         
        clusterize: true
    }); //кластеризуем
          
    objectManager=SetClusterProp(objectManager);        
    myMap.geoObjects.add(objectManager);        
...
objectManager.add(массив_объектов);

// настройки кластеризакции

objectManager = new ymaps.ObjectManager({

gridSize: 120,

clusterDisableClickZoom: true,

geoObjectOpenBalloonOnClick: true,

minClusterSize: 2,

showInAlphabeticalOrder: false,

viewportMargin: 128,

zoomMargin: 0,

clusterize: true

}); //кластеризуем

objectManager=SetClusterProp(objectManager);

myMap.geoObjects.add(objectManager);

...

objectManager.add(массив_объектов);

В результате получим что-то вроде:

Оставить комментарий map api yandex, диаграмма, иконка кластера, карты

Пн	Вт	Ср	Чт	Пт	Сб	Вс
				1	2	3
4	5	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30