修改重合点显示问题，科学计数转换及线路箭头大小设置

ZhuDongming

2019-08-01 5138443a9b6b0036edfe5988703e1550fdde2507

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distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip